The instruments cannot be shared

[kry127]

I've built up some pattern

https://poly.ozieblowski.dev/?lengths=1&repeats=0&swings=0&ratios=4a2a2a12&subdivides=1&offsets=0a0.375a0.75&bpm=100

But the problem is that instruments are not saved at all, because do not participate in serialization.

It is nice to have chosen instrument serialization.

[Angramme]

Hey, thanks for pointing out. If you'd like, you can make a PR for this :)