Wow. DieHard, Mactron, Mat, Knez and devils_advisor are PURIST
If in their setups having OS9 and X in the same partition gives problems to them I can't blame them for choosing not to use OSX and have a pure 8.x 9.x config. This keep them focused on music or alike they do.
In my setup with different hard drives in every boot I choose a different DAW flavor for the job's needs. Because almost every cat has one or two good DAWs (Jaguar, Panther:Protools6; Tiger has lots of video converters/editors software and Leo even more). Some files I need to convert on tiger. Some websites only let you download things with modern browser (I know and appreciate classilla).
DieHard, Mactron, Mat, Knez and devils_advisor had choose to run MacOS9, others choose MacOSX and Chris and me had choose both. He goes beyond talking about ANY DAW (1995-2005 I think)
Been retroDAW and obsolete both OS9 and OSX on powerpc, why not have some post and uploads from contributors of MacOSX (and Win x86) DAW abandonware software? It can benefit any OS9 DAW to have a x86 DAW/OSX aside. And having all this resources centralized.
Been a purist is harder to run x86 keygens in virtualPC while having a pc just for keygens in a DAW environment takes sense too! Gigasampler is the software we wanted to run just because was only x86. Why not have a dedicated x86 or PowerMac virtual instrument/sampler at the will of our beloved OS9?
One MacOS9 to rule them all
There is also debian for powerpc and you can use it as a Daw
http://ppcluddite.blogspot.com.es/2013/01/garageband-alternative-for-linux.html