Yes, that's what sound fonts are basically. All sound cards come with their own packs of instrument sounds.
That's why MIDI files are so very small. MIDI is not audio, it's just basically sheet music for the computer. When you "play" a MIDI file the computer reads the sheet music and plays the tune with its own instruments.
But Spook Keys is a VSTi, a virtual instrument that you can load in a host (VSTHost for example) and play through a keyboard that is connected to the computer through USB.
That's why MIDI files are so very small. MIDI is not audio, it's just basically sheet music for the computer. When you "play" a MIDI file the computer reads the sheet music and plays the tune with its own instruments.
But Spook Keys is a VSTi, a virtual instrument that you can load in a host (VSTHost for example) and play through a keyboard that is connected to the computer through USB.