Hi Kitsch, nice to see you in this thread ... ok @Moriokun here is what i do + other suggestions...
95% of the music software for Macintosh Plus, or 512K or even the 128k model are huge (between 4 MB to 20 MB or more)... so that's mean you can't use these apps by using floppy disks (800k). So I bought and plugged a Iomega 100 SCSI drive to the external drive port of the Macintosh Plus... then in one zip (100 MB) disk I installed System 7.2 + the music apps... that's mean you will have lot of space on those 100 MB to save tracks and even copy more music apps from Macintosh Garden or the System 6 heaven website (check the links down into this post). Another way would be to have an external (vintage) SCSI Apple drive, like the 20 or 40 / 80 SC models with system 6 or 7 indeed plus the music apps (external-boot-drive).
The hard part of the process it's about how you make the set-up, install, and make a good BOOT iomega zip disk to work with the Macintosh Plus. In my case I'm a lucky man cause my best friend own about 20 vintage macintosh computer models on his studio... So I approach his expertise configuring, and creating this boot-able zip disks. I'm also learning and buying different hardware stuff to make this process by myself... I would keep you posted about this ;-).
My advice if you don't want to spend so much money or even just want to do some test before to continue with the Macintosh Plus adventure ;-), you could always visit and order a custom disk from this website: http://rescuemyclassicmac.com/ . Kevin is the name of the website owner, you can order or send an email to him + a blank zip drive disk + the software you want, and this guy will create a boot disk to work with. I really recommend the service of this guy cause I ordered many floppy discs with mythic games like Dark Castle or Apache Strike, Shuffle Puck, about 3 months ago.
You could even send to him a DropBox link with the all apps you want installed in one zip disk.
So at this point please add to your bookmarks these links:
- Music Apps from Macintosh Garden: http://macintoshgarden.org/apps/music-sound (<---Thanks Domu)
- Music Apps from System 6 heaven: http://www.euronet.nl/users/mvdk/sound.html
- Rescue my Classic Mac: http://rescuemyclassicmac.com/
- My Old Mac: http://www.myoldmac.net/
By the way, please post the old system 6 tracker app name... I would want to test-it