Another the reason the non-68k market was so fragmented was because of the internal politics and coup against Tramiel inside Commodore. Atari Corp only existed

Another the reason the non-68k market was so fragmented was because of the internal politics and coup against Tramiel inside Commodore. Atari Corp only existed (and produced a 68k) because of his departure. Along with some key engineers. The Atari ST is in large part Shiraz Shivji's design, after coming over from Commodore where he worked on various things including the C64 and one of the ill-fated "business" computers that CBM was making. I'm not sure what Commodore would look like if the Tramiels had stayed, though. It may have imploded in other ways. And Commodore under him really didn't seem to get software/platforms/compatibility. Also the ST didn't get placement inside studios just because of the MIDI ports. It was also because it was a) $cheap$ b) completely reliable solid timing [no multitasking helps there] c) had a fairly Mac-like GUI d) the top-notch paper white 640x400 (pretty good resolution for the time) monochrome monitor & mode. It also wouldn't have done well in studios if it weren't for the German software scene and the development of Steinberg's Cubase and e-Magic's Notator. The ST was popular in Germany. Most of the really good software came out of there (see also Calamus DTP) Gluing a MIDI port into the Amiga wouldn't necessarily had brought that set of happenstances to the Amiga.