The "Fluid" pack which ships with MuseScore and "Musyng Kite" pack which is just found online are both Freely licensed and sound "better" in karaoke-parlor kind

The "Fluid" pack which ships with MuseScore and "Musyng Kite" pack which is just found online are both Freely licensed and sound "better" in karaoke-parlor kind of way (though personally I think I prefer the MIDI sound you have now, which is a bit closer to how I remember it sounding before my dad invested in a SoundBlaster card.) Having options for the overall playback sound is one of the cool features of MIDI though.