Master Tracks Pro by Passport Designs was one of the first computer-based midi sequencing software apps. In 1984 it was developed for Atari ST, Apple IIGS, Macintosh, and Windows. The only one that still survives as a purchasable software today is the Windows version, but it will no read files created with the Atari ST, Apple IIGS or Macintosh versions from the 80s and 90s.
We can convert these Master Track Pro files that are emailed to us or sent on floppy disks from the Apple IIGS and Macintosh versions to standard midi files for use in modern sequencers. Atari ST conversion coming soon.
