Torsten… you wrote…
There are a number of multitimbral VST plugins you can use for GM. If it’s just the sounds, there are a number of great GM/GS soundfonts around. With SFZ or TX16w, you can load these soundfonts and play through these plugins.
I have found a number of great sounding GM soundfonts which I use with a product called CoolSoft VirtualMIDISynth, and which integrates well with Win 10 and shows up on software MIDI device listings just like the Microsoft GS Wavetable. Although Cantabile recognizes the CoolSoft plugin, it doesn’t play through it (probably C3 sees it as a non-VST).
However, I am struggling to find an SFZ player with a VST option that can play the same GM soundfonts as a multitimbral (16 channels with separate GM instruments on each channel).
I just tried the Plogue Sforzando SFZ player VST option which works in Cantabile 3, but does not play multimbral, so all MIDI channels play using one instrument (and not sure if it responds to program changes).
Been looking around the web and at various forums, but not finding a player that is validated to work in a Win10 64-bit environment. Not sure if the older soundfont players (several of which are no longer readily available/supportable) will work in Win10-64 or have a VST option. Any suggestions?