Nice, thanks!!
It could be done with that I guess?
Do you know how I can open a file chooser, or access to a file or sample bytes through this API?
The first plan I can think of would be to create a tool that:
- opens a file chooser to select an 8 bit sample (raw or IFF)
- if it starts with ‘FORM…8SVX’, then parse a few info from the VHDR chunk (like sample rate, one shot nb samples, repeat nb samples) and use that to create an instrument.
- if it is a raw sample, allow to select a sample rate with an input field, then load the bytes from the BODY chunk and assign it to an instrument
For reference, good info to parse IFF audio files are here:
This would preserve loop info, and remove the need for conversion altogether 
I don’t know if I have the time or skills to do that, but it sure looks interesting!