I did all my sequencing on a ST Mega 4 for years using that version of
Cubase that everyone had back in the bof-bof-bof rave music days. The
reason techno musicians loved it, and stuck with Ataris WAY past their
natural life, was the MIDI timing. The UART on the ST was clocked
absolutely rock solid. Remember this was before DAWs and so most of
the gear was external - synthesisers and samplers - so you needed
really fine real-time accuracy. Nothing else beat the Atari ST.