Thought you might get a kick out of this.

It's a small snippet using an inexpensive midi keyboard as an event
sequencer, assigning a pipe organ soundfont, then converting to mp3 format.
Everything (except the keyboard controller) was freeware.

Hopefully, you have a decent speaker arrangement on your computer capable of
a little bass.
Turn it up!

http://www.eisboch.com/yamahabrahm.mp3

Eisboch