Yes, most of the pro digital music production software is available for Windows and Mac (no linux): Propellerheads Reason, the whole Native Instruments product

Yes, most of the pro digital music production software is available for Windows and Mac (no linux): Propellerheads Reason, the whole Native Instruments product stack, Ableton. There are just a few obvious Mac-only exceptions such as Garage Band and Logic Pro. Sadly none of the "industry standard" DAWs support Linux.