I am in the UK and used to use Gajits' Breakthru' 2 on my Atari ST but that machine has given up working. I am now looking for similar software (no audio input, no onboard instruments, no mixer necessary) that works the same way on a Windows 10 PC or Windows 8 laptop. I prefer a step entry arrangement, preferably on a music score screen. I still own the Breakthru' kit and am looking at Atari ST emulation software (STEEM) but have so far not been able to get things working.
If anyone can suggest some software that works the same way as Breakthru' but on a Windows system, I shall be eternally grateful.