Keyboard Instrument Is There Any Way Of Creating An Instrument Out Of A Computer Keyboard? Like Assigning Each Key A Note?

Is there any way of creating an instrument out of a computer keyboard? Like assigning each key a note? - keyboard instrument

I have a song, but I have my guitar and my keyboard ... So I have a program that my computer keyboard into an "instrument will do, preferably a keyboard.
I also have a drum track creator.