You can enjoy the feeling of punching holes in the paper of a hand-cranked music box and playing it.
In real life, you would need many sheets of paper, but with this app, even if you make a mistake, you can correct it and try again as many times as you like.
You can gift your own songs by writing them on the music box board, or exchange them using QR codes.
You can now also play with the M5Stack series AtomEcho.

Main features
- Song data can be transferred to the board and played on the board
- Can input from quarter note to 64th note
・256 steps for quarter notes, 4096 steps for 64th notes
- Possible to set tempo during playback
・2 octave keyboard input
・Simultaneous pronunciation of up to 3 notes per step
・Up to 250 sounds can be input
・Save data (automatically load when restarting the app)
・You can exchange composition data with acquaintances via QR code
・Can be read from the QR code saved in the album
・You can delete the input sound by reselecting it.
・Does not automatically scroll when deleting
- Automatically scrolls as you type
・Screen up/down scroll key (long press to fast forward)
-You can set the end position of the song using the END button.
・Repeat function for playback playback
・One line insertion and one line deletion function
・You can transfer the song data created to the music box workshop board and play it on the board.
-You can now choose from two types of sound sources (conventional and board sound sampling)

*Versions earlier than 1.03 cannot read QR codes after 1.04, so please update the app to the latest version.
*QR codes created with versions earlier than 1.03 can also be read with applications later than 1.04.

How to use
●Top screen
When you press a key, the note will be played, a mark will be added, and the line will scroll one line.
The scroll will advance one note according to the set note (quarter note to 64th note).
Notes can be changed using the (+) and (-) keys.
You can move the editing position using the ↑ and ↓ keys, and the sound at the moved position will be played.
Press and hold the ↑ and ↓ keys to fast forward. At this time, no sound will be played.
You can change the tempo of the song using the + and - (minus) keys.
Press the SAVE button to save it and automatically load it the next time you start up.
To listen to the song you just typed from the beginning, press the TOP key to move to the beginning of the song, then press the PLAY key.
The performance will stop automatically when it reaches the end of the song.
If you want to stop midway, press the PLAY key.
Pressing the INS key inserts one line (the length of the current note) at the current editing position.
Press the DEL key to delete one line at the current editing position.
Press the MENU key to display the menu screen.

●Menu screen
Press the "MakeQR" button to convert the current song data into a QR code and display it.
When giving song data to a friend, display the QR code.
When you receive a song from a friend, press the "ReadQR" button and point it at the QR code displayed by your friend.
Additionally, if you take a snapshot of the QR code, you can load it using the "QR Photo" button.
The "All Clear" button clears the composition data.
In the text input area at the top of the screen, if you enter the song title etc. when taking a snapshot of the QR code, you will be able to find out what song it is later.

●Transfer created song data to the board
You can transfer song data created to the music box workshop board and play it on the board.
Press the "LED Trans" button on the menu to display the song data transfer screen.
Set the slide switch on the board to the switch mark side and press and hold the button on the board until the LED blinks slowly (write mode).
Place the smartphone's camera lighting section directly above the light sensor on the board and press the "Start Transfer" button.
During writing, the LED on the board will change from flashing to lit, and the progress bar of the app will advance.
When data writing is successful, the LED on the board turns off.
If data transfer fails, the LED on the board will flash rapidly, so press the button on the board (to cancel write mode) and try again.

For videos on how to use it, please search for "Music Box Workshop" and "Writing song data to electronic music box board using smartphone app" on YouTube.
https://www.youtube.com/watch?v=gKYO2o_FNh4
https://www.youtube.com/watch?v=EFtbN6PRWyo

オルゴール工房