Update 2: Pedro Pimienta recommends Vortex Tracker, and that's included in Z88DK out of the box, so I guess it should be the initial option.
Unfortunately Vortex 2 does not allow sound effects mixed with music. Arkos and WYZ do.
Update 3: Arkos can import Vortex files and export Arkos, so this should be way to go: integrate Arkos in RAGE1, music can be created with Vortex and imported by Arkos.
Add 128K sound chip support: WYZtracker, etc.
Update: seems ArkosTracker is the way to go?
Update 2: Pedro Pimienta recommends Vortex Tracker, and that's included in Z88DK out of the box, so I guess it should be the initial option.
Unfortunately Vortex 2 does not allow sound effects mixed with music. Arkos and WYZ do.
Update 3: Arkos can import Vortex files and export Arkos, so this should be way to go: integrate Arkos in RAGE1, music can be created with Vortex and imported by Arkos.