Love this!

One thing I'd find frustrating if using this when working on music: "When beat is playing, get new sample for drum plays as soon as it generates".

If "this sample is programmed to play in playing beat", then it'd be good to do a silent replace, or have the option to, so that you don't get a weird unquantized snare sound, for example. I'm finding it puts me off the generated sound more if I initially hear it in a context where it doesn't fit.