My Perfect Music Box as Instrument
I composed 100+ songs via the Muro Box App!

Yen-Ting Chen (Tim)

My Perfect Music Box as Instrument
I composed 100+ songs via the Muro Box App!

Yen-Ting Chen (Tim)

Why Did the Muro Box Team Want to Invite Yen-Ting to Share His Story?

Yen-Ting is the creator of the Muro Box App who has publicly shared the most well-known tracks, which is why he was featured in this special interview.

As of September 25, 2025, he has shared 134 songs (105 for the N20 version and 34 for the N40 version), including tracks in Chinese, English, Japanese, and Korean. His repertoire spans movie and anime theme songs, TV dramas and musicals, as well as classic Mandarin and English hits, alongside trending online favorites popular with younger listeners.

Yen-Ting often responds to fans’ song requests in the comments section of his tracks on the app. If he personally enjoys the song and feels a connection with its melody, he is happy to take the time to arrange it!

“I’m not a musician, but I have ears” — My Muro Box User Story

Hello to all music box enthusiasts! I’m Yen-Ting, and as of September 2025, I’ve been using the Muro Box music box for 3.5 years. Over the years, I’ve enjoyed composing and uploading tunes for others to play, and sharing my thoughts about those songs in the user community. Though I’m not the most experienced user, I’m definitely a dedicated one, and I’m truly honored to have received an invitation from the Muro Box Team to answer a series of questions and share my personal journey and reflections with this wonderful instrument.

I’m not a music major, but I like music for sure. Before my encounter with the music box, like many kids in Taiwan, we took musical instruments as a hobby. Some may take it as a class to fill the after-school time, but I did enjoy that pretty much. First at a children’s percussion band, I had a wonderful kindergarten time, and then I practiced piano for several years but never took it seriously. Guitar was a cool gadget at high school, and I finally found it easier at the choir. Music was never absent, but neither played a major role. Having nothing to perform, I would describe myself as a latent musician.

One Saturday afternoon, while strolling through the Modern Music Bell Museum in Taichung City, I unexpectedly came across this smart music box. To my surprise, the person who patiently introduced me to the app functions was Dr. Shiao-Chen Tsai, the co-founder of Muro Box. It turned out that she was visiting this store to observe customer reactions so she explained the app's composition features to me in person.
One Saturday afternoon, while strolling through the Modern Music Box Museum in Taichung City, I unexpectedly came across this smart music box. To my surprise, the person who patiently introduced me to the app functions was Dr. Shiao-Chen Tsai, the co-founder of Muro Box. It turned out that she was visiting this store to observe customer reactions so she explained the app's composition features to me in person.

Because I have relative pitch in my ear,
Muro Box is the perfect musical instrument for me.

Thank God I still have good ears and a good sense of hearing——or perhaps not as good as I thought. I have relative pitch with a movable “Do”, allowing me to comprehend melody in an easier way but the paragraphs would sound the same to me even if the tone had been shifted. Another major drawback is that I won’t be able to identify the note I hear, nor to communicate precisely. In this setting, music stays in my head and has difficulty expressing itself.

Note 1: Perfect pitch is the ability to identify and reproduce specific musical pitches, while relative pitch is the ability to distinguish between different musical pitches.
Note 2: Solfege (movable-do) naming convention: Singing the tonic note of the current key as “Do”. The corresponding convention is “fixed-do”: Using absolute pitch to sing all notes.

Using the song “Sunny Day” by Jay Chou as an Example:

Fortunately, I don’t make a living on music. The “defect” in the way I comprehend music does not affect my life as life goes on. Then I settled in central Taiwan, found a job in the middle of the farms and started strolling around. Soon enough I found the Taiwan Modern Music Boxes Museum and discovered Muro Box in the gift shop. This can be recognized as my first encounter with this delicate little boutique.

As you all know——and maybe know better than I do——this app-controlled mechanical music box is capable of a lot of things, but it is also born with limits. The comb and the mechanical speed limit basically marked the border of its performance. No semitones, no continuous notes faster than 20 bpm, and most important of all, songs compatible with the Muro Box have to fit within the range and have to be converted to C Major.

In the app, composing involves tapping on the grid corresponding to the musical notes. By long-pressing the placed notes, you can adjust their pitch by moving them up or down. Moving them left or right changes the beat position, allowing for greater variation in the arrangement density (rhythm) of the musical scale. Note: Numbers between 1 and 2 represent one beat, and within one beat, there are four divisions of 1/4 beat each (16th notes). The smallest unit of movement during a long press is 1/16 beat (64th note).
In the app, composing involves tapping on the grid corresponding to the musical notes. By long-pressing the placed notes, you can adjust their pitch by moving them up or down. Moving them left or right changes the beat position, allowing for greater variation in the arrangement density (rhythm) of the musical scale. Note: Numbers between 1 and 2 represent one beat, and within one beat, there are four divisions of 1/4 beat each (16th notes). The smallest unit of movement during a long press is 1/16 beat (64th note).
When you search for my English name "Chen Yen-Ting" in the Muro Box App's music library, you'll find the tracks I've publicly shared. Currently, the majority are in Chinese, but there are also Japanese and English songs. Recently (August 2023), I've just reached the milestone of sharing 100 songs on the app. I hope you all will enjoy them.
When you search for my English name "Chen Yen-Ting" in the Muro Box App's music library, you'll find the tracks I've publicly shared. Currently, the majority are in Chinese, but there are also Japanese and English songs. Recently (August 2023), I've just reached the milestone of sharing 100 songs on the app. I hope you all will enjoy them.

C Major….Wait did I just hear C Major? You can say that again! After all those 35 years I finally found exactly what I am looking for. Although I don’t have what it takes to play an instrument promptly and precisely, I can however polish my arrangement over and over again then leave it to Muro Box to play it out. Best of all, I can have my work debut till I’m satisfied, no rush, no pressure because it’s my stage, my pace!

I found my own way of composing music after arranging a lot of famous songs.

I seldom compose my own pieces; instead, I arrange songs that already exist, mostly famous ones and classics ones. What I do is to recognize the melody, and process what I hear with what’s wired in my ear: comprehending them in C Major. Then it turns out to be a natural adaptor for Muro Box. Most songs need trimming, selection and sometimes style adaptation to fit in Muro Box. They may appear quite differently after modification, so I guess they may somehow count as “my composition”?!

The range of song selection is, um…. wide, I guess. Mandarin and Taiwanese pop, folklore, ballade, Western pop mostly English, movie scores, animation aka. J-pop, K-pop, and sometimes classical. There’s a category that may be a bit interesting to you, that’s my “Etudes”. They are not classical ones but some TV commercial’s melody, shore’s chimes and some catching clips inspired from radio. Hilarious they may seem to be, it’s actually great fun when arranging them.

I’d like to hereby share about my routines for checking whether a song can be converted to Muro Box or not.
1. Convert the melody to C key and check if there are many unavoidable semitones.
2. Does the converted melody fit within the N20 comb?
3. Are there repetitive notes that come in intervals too short?
4. Are there any sentences solely rhythmic without tones?
5. Do I have enough passion and faith in arranging this song?

Cultivate composing energy with my ears and let time settle the inspiration for new creation.

There are of course exceptions, but in most cases, there’s always a solution. It takes time and trial once and once again, but the effort will remain and each time it gets closer to completion.

On the other hand, when it comes to playing the music box as a hobby, it’s also important to find an efficient method to increase output. When starting to play the music box, it’s natural to begin with the most favorite and familiar tunes. However, after completing these initial pieces, I occasionally find a situation: I want to play a tune, but don’t know which song to arrange. What happens more commonly is that I heard a tune I could play a few days ago, but now I can’t recall which song it is.

When you search for my English name "Chen Yen-Ting" in the Muro Box App's music library, you'll find the tracks I've publicly shared. Currently, the majority are in Chinese, but there are also Japanese and English songs. Recently (August 2023), I've just reached the milestone of sharing 100 songs on the app. I hope you all will enjoy them.
When you search for my English name "Chen Yen-Ting" in the Muro Box App's music library, you'll find the tracks I've publicly shared. Currently, the majority are in Chinese, but there are also Japanese and English songs. Recently (August 2023), I've just reached the milestone of sharing 100 songs on the app. I hope you all will enjoy them.
In Yen-Ting's KKBOX app playlist, there's a playlist named "Music Box," where he has carefully selected music that can be arranged for playing on the Muro Box. Once he completes the arrangement of those songs, he moves them to the "Music Box Completed" folder. There's also a playlist named "N40 Music Box Prep," where he has already started to collect music ideas for the upcoming new product, Muro Box-N40!
In Yen-Ting's KKBOX app playlist, there's a playlist named "Music Box," where he has carefully selected music that can be arranged for playing on the Muro Box. Once he completes the arrangement of those songs, he moves them to the "Music Box Completed" folder. There's also a playlist named "N40 Music Box Prep," where he has already started to collect music ideas for the upcoming new product, Muro Box-N40!

Therefore, I added a “Music Box” playlist to my KKBOX music streaming app. I usually add songs that I think can be played on the music box to this folder. Whenever a song comes to mind, I add it to this playlist. During my commute time for work, I listen to this playlist. Once I feel familiar with a particular song and it starts to resonate with me, I can start working on its Muro Box version via the Muro Box App. Listening to a song extensively before playing and transcribing it is quite helpful. Moreover, during the process of transcribing, I often find the need to pause and listen to the original track for reference.

From time to time, the compositions come to a halt, and it feels like being trapped. That’s perhaps one common thing every one of us experienced on our way of composing music box works. These works may be buried deeply but oftentimes after a while they make sense again when I review them, just like the Muse comes to me all at a sudden; to be practical on the other hand, it’s likely to attribute to some hearing sedimentation.

Thus, in conclusion, it’s the hearing that matters the most, at least it works that way to me.

From Selecting a Song to Arranging and Sharing it with Other Users, I Love Each Step of the Music Creation Process in the Muro Box App!

One of my favorite parts of composing is to debut a song. As you can see now on the app, the interface has become compact and pretty. The sound texture of the simulated music box ding-dong has also improved a lot so it’s quite an enjoyment to hear my works on the app. It’s also challenging to introduce the works in the user group, as it’s an official review of the content, but it’s worth it since it triggers more opinions from other users.

This image collection from the Muro Box App shows various cover images uploaded by Yen-Ting Chen. The wide range of melody choices can see his taste of music covers pop music, theme music from movies/animations/musicals from Taiwan, US, Japan and Korea.
This image collection from the Muro Box App shows various cover images uploaded by Yen-Ting Chen. The wide range of melody choices can see his taste of music covers pop music, theme music from movies/animations/musicals from Taiwan, US, Japan and Korea.
This is the Happy Birthday song Yen-Ting arranged for his son. The comment from another user asked Yen-Ting how many songs he has created, and Yen-Ting replied to him that he has completed 99 songs (at that time).
This is the Happy Birthday song Yen-Ting arranged for his son. The comment from another user asked Yen-Ting how many songs he has created, and Yen-Ting replied to him that he has completed 99 songs (at that time).

Arranging Muro Box Melodies Has Become a Fun Part of My Family Time

Arranging music to play on the Muro Box has become a decent way to “properly use” my trivial times. It has become a birthday song special for my family, and kids look forward to my next work. I sometimes take orders from them (challenge accepted!) and most of the time they are satisfied. As to my wife, a piano major, that’s…. not so easily persuaded, but she indeed gave me lots of technical support and has been a reliable consultant. Lucky me!

My wife, who’s a music teacher, occasionally helps me understand the original compositions and break down the more complex sections, especially when I run into challenges while arranging. Our eldest child is ten years old now—maybe in a year or two, once she starts using a smartphone, I’ll share this joy with her too. My wife has requested a few songs for me to arrange, though I haven’t fulfilled every one of them; I only take on pieces that I genuinely enjoy.

Why Did I Decide to Purchase an Additional N40 Music Box?

My biggest—and only—expectation for the N40 was that it would allow me to start arranging songs that I simply couldn’t realize on the N20. The N40 has fully met this expectation. With the addition of black keys, I can play semitone intervals that were impossible on the N20, without having to transpose every song to C major, and I can even incorporate key changes within the same piece. For these reasons, I had no hesitation in upgrading to the N40.

I purchased the Muro Box N40 Standard in Natural Wood Color with an Acacia Wood Resonance Box.
I purchased the Muro Box N40 Standard in Natural Wood Color with an Acacia Wood Resonance Box.

Yen-Ting commented under his track on the app: “I’ve devoted all my creative energy in 2024 to this!

My Considerations When Purchasing the N40 Music Box

The feature I cared about the most was the expanded range, but there were two other aspects I valued just as much: “Does the limit for consecutive notes still stay at 120 BPM?” and “Have consecutive notes become more stable?” I focused on these because this characteristic determines whether certain songs can even be arranged. In other words, I was more concerned with how far the N40 could take us, rather than how beautifully it could perform tasks that were already possible.

First Impressions of Unboxing the N40 Music Box

After such a long wait, my first impression of unboxing the N40 was, “This is ASMR for storage enthusiasts.” The product fits perfectly within the packaging, cushioned just right, so that when I pulled it out, there was even a slight airtight resistance. In this day and age, it’s rare for a company to invest in such thoughtful packaging, and as a consumer, I truly appreciate it.

Moreover, when I saw that the eight corners of the cardboard box were covered with protective plastic caps, I felt completely reassured, knowing that the resonance box inside was well-protected!

(*Note: ASMR stands for “Autonomous Sensory Meridian Response”.)

自宅の音楽部屋にて、陳彥廷さんとMuro Box-N40 標準版およびN20のスマートオルゴール。
自宅の音楽部屋にて、陳彥廷さんとMuro Box-N40 標準版およびN20のスマートオルゴール。

Comparing the Performance and Feel of the N20 and N40 Music Boxes

I feel that moving from the N20 to the N40 isn’t just an upgrade in sound quality or resonance—it’s a step into a completely different direction. Perhaps because of the heavier metal base, it’s like the difference between a small bell and a large bell: the small bell (N20) sounds crisp but lacks resonance, while the large bell (N40) is deep and full but not as bright.

As for resonance, the difference I notice is a bit abstract, but the same note on the N40—regardless of the version—always sounds a little “farther away” compared to the N20.

How It Sounds with the Resonance Box

I usually play my music box on top of the resonance box. With the box amplifying the sound, the same note seems to sustain its resonance a bit longer. In a very quiet environment, you can notice the lingering tail of the notes, but in a noisier setting, the effect might feel “lost.”

Regarding the material difference, in my experience, the harder acacia wood sustains resonance longer than zebrawood. This characteristic allows the bass notes to hold rather than just being short, distinct points. The downside is that if the music is densely played, the prolonged resonance can make the notes blur together—this effect is more noticeable in the lower register. So, if I want to listen to pieces with many low notes, I usually remove the resonance box.

Although I have both the N20 and N40 music boxes at home, I don’t often sit down to listen to them. The times I do fully enjoy the music boxes are usually late at night, after finally coming home and once my wife and child are asleep. I’ll close the study door and listen to a newly arranged piece to hear how it plays on the music box.

The Muro Box team thoughtfully designed the app to allow customers with two music boxes at home to switch which one is being controlled. I only recently discovered this feature myself—check out this blog post to learn how to switch between them. 🙂

Product Stability and After-Sales Support

Perhaps due to the mature mechanical design, both the N20 and N40 music boxes are very stable and durable. The customer service is excellent, and since the company is based in Taiwan, communication is completely smooth. The only issue I’ve encountered is that the app occasionally crashes on the iPad mini, so it’s a good habit to save your compositions frequently. Other than that, I haven’t run into any problems that couldn’t be resolved.

After attending the Taichung listening event before the 2023 Muro Box N40 crowdfunding, Yen-Ting took a group photo with our team, holding the N40 Sublime Edition music box. This model features two solid brass bases, weighing 3.4 kg—Yen-Ting says it’s almost as heavy as a newborn baby!
After attending the Taichung listening event before the 2023 Muro Box N40 crowdfunding, Yen-Ting took a group photo with our team, holding the N40 Sublime Edition music box. This model features two solid brass bases, weighing 3.4 kg—Yen-Ting says it’s almost as heavy as a newborn baby!
Punched paper strip music boxes can now play melodies composed with the Muro Box App!
Punched paper strip music boxes can now play melodies composed with the Muro Box App!

My Suggestions for Continued App Improvements

I hope that in the future, the app interface can be optimized for larger tablets. Currently, the app is designed for iPhone screen sizes, and on iPads it simply scales up the interface. This feels like a missed opportunity, because it doesn’t take full advantage of the larger screen. With a properly optimized layout, more measures could be displayed horizontally, and the 40-note range could be viewed vertically without constant scrolling. This would allow me to see entire note groups at a glance, which is very helpful for maintaining balance while arranging music.

I also hope that one day a “Export Sheet Music as PDF” feature will be available. This would let us print out our arrangements as actual paper rolls, which could even be used on vintage music boxes!
(*Note: This new feature has been developed and released in response to customer requests! Check out this post for instructions on how to use it.)

Why I Love Arranging Music but Didn’t Become a Professional Musician

I want to share some thoughts on why I didn’t become a professional musician. Many people in Taiwan learn music, but few continue to perform seriously. Learning music isn’t necessarily hard, but mastering it requires immense time, patience, and repetitive practice. Often, parents treat music as a hobby, a way to cultivate interest, or simply as a résumé booster. Even if a child shows talent and dedication, parents may discourage too much practice, wanting it to remain just a fun “extra,” not a career.

In Taiwan, most music studies end either because the family wants the child to stop or the student doesn’t want to endure the learning curve. For me, both applied: when I told my father that I didn’t want to practice piano anymore when I was in junior high school, we both felt relieved.

The Muro Box-N40 Standard Edition music box sounds beautiful when played on a solid wood table. It’s a perfect automatic music-playing instrument for relaxing at home with a quiet drink.
The Muro Box-N40 Standard Edition music box

It’s Not That I Lack Musical Talent, I Just Didn’t Have Enough Time to Practice

Although I never completely stopped engaging with music, I would switch instruments and quickly get the hang of them without ever practicing to mastery. Achieving the level where you can perform freely requires continuous, dedicated practice. I had the ears, pitch, perhaps some harmony sense, and slightly above-average musicality, but I never honed them to their full potential. Choir was probably the best fit for my natural abilities, and I sang for several years, but once I entered medical school, I truly stopped all formal music activities. Along the way, I often heard people advise, “It’s just a hobby—don’t spend so much time on it,” reflecting the responsibility-first mindset we grew up with.

Music practice requires consistency. Four separate thirty-minute sessions are not equivalent to a continuous two-hour session, and practicing two hours every day is not the same as once a week for half a day. Those who pick up an instrument years later and play effortlessly usually practiced enough in their youth. I never built that foundation during the time I could, and by the time I had another chance, my body and mind couldn’t keep up. That’s why I rarely talk about the instruments I once learned—until the advent of automated music boxes.

Creative Freedom in Small Moments: How Automated Music Boxes Give a Latent Musician a Stage

An automated music box lets you compose and have it perform your arrangements. The beauty of composing is that you can work in small, private moments—whether in the bathroom, on your bed, or during a shift—refining each note with your ear until the piece sounds just right. While music theory knowledge helps, composing can be done one note at a time, gradually building a full piece. Unlike live performance, which demands perfection in the moment, this approach is perfect for those with only fragmented moments to practice.

The Muro Box-N40 Standard Edition music box is placed on the living room floor, surrounded by children's toys—capturing a glimpse of Yen-Ting's everyday joy as he listens to music while spending quality time with his child at home.
The Muro Box-N40 Standard Edition music box

I used to think my relationship with music would be limited to listening to CDs or singing at karaoke—a “that’s just how it is” mindset. It wasn’t so much acceptance as it was knowing not to chase unrealistic brilliance.

But the arrival of Muro Box changed that. Even my small abilities became usable and could accumulate, little by little. I don’t need to be an active musician to steadily build my creative output, and today I’ve compiled an entire playlist. I wouldn’t call myself a master, but I feel genuinely satisfied.

If someone finds my progress impressive, it’s simply because I’ve spent time playing the songs I love, without concern for achievement. Everyone accumulates at their own pace, but the compositions you save never betray you—you can always push them a little further. I hope anyone interested in “leaving their creative mark” can use this platform to build something meaningful too!

My Comment about the Muro Box

It’s hard to tell how happy I am to have encountered such a nice, delicate and technically stunning machinery boutique. It’s both relaxing and challenging, quite a contentment seeing my works being produced one after another one, and it gave those in-mind music a chance to be realized. Sincerely wish this magical Muro Box can be introduced to more people, see you at my next song!

Yen-Ting attended our DIY Muro Box class in Taichung on Jan. 25, 2023. In this class, we played several melodies arranged by Yen-Ting in class to let the class enjoy his music creation together, and then a young student asked Yen-Ting to create a new pop song for him, so Yen-Ting immediately created this song for this student after class.
Yen-Ting attended our DIY Muro Box class in Taichung on Jan. 25, 2023. In this class, we played several melodies arranged by Yen-Ting in class to let the class enjoy his music creation together, and then a young student asked Yen-Ting to create a new pop song for him, so Yen-Ting immediately created this song for this student after class.

It’s hard to tell how happy I am to have encountered such a nice, delicate and technically stunning machinery boutique. It’s both relaxing and challenging, quite a contentment seeing my works being produced one after another one, and it gave those in-mind music a chance to be realized.

Yen-Ting Chen