Note that the last released version of Octamed is legally available on Aminet:
Octamed SoundstudioSoundstudio is good for 8 bit tracking, on 16 bits it's trickier to use since its remixer has a limitation of 3-4 volume values, which can't even be easily determined. For 16 bits I'd recommend DigiboosterPro, which is commercial.
Varthall