Playback for "Hyperscore" example project is broken

[pikurasa]

Description

Expected Behavior

Our "Hyperscore" super-example can be found here: https://sugarlabs.github.io/musicblocks/index.html?id=1523896294964170&run=True&run=True

It paints the music just fine, but when you press the play button to generate a stack of notes for what you played, it creates rests, throws a few errors, and even seems to get a start block stuck inside a note. (See images below.)

Screenshots

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How to Reproduce

Open https://sugarlabs.github.io/musicblocks/index.html?id=1523896294964170&run=True&run=True, paint a bit, and press the play button at the top.

Note blocks will generate, but some will generate incorrectly.

Console log Errors:

Here are all the logs from the session:

sugarlabs.github.io-1720747474605.log

Environment:

Presumably All

Checklist

• I have read and followed the project's code of conduct.
• I have searched for similar issues before creating this one.
• I have provided all the necessary information to understand and reproduce the issue.
• I am willing to contribute to the resolution of this issue.

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[dubeanant]

Hello @pikurasa ,

I’ve decided to take on this issue. Could you provide any insights on why this error is occurring or how I might resolve it?

[akshayw1]

@dubeanant , Are you working on the issue?

[dubeanant]

@dubeanant , Are you working on the issue?

Nope, go ahead

[akshayw1]

Is anyone working on this @pikurasa Can you assign me this

[pikurasa]

Is anyone working on this @pikurasa Can you assign me this

Go for it!