Eric Pelka paints and resides in Brooklyn, NY. This is a piece that he did entitled, Thank You! Thank You! Thank You!
I had sent a postcard with this painting on it to the author of Bome's Mouse Keyboard to unlock the program. Bome's is a nifty and handy piece of software for music creators both novice and advanced. This is a virtual keyboard that works with Buzz, Acid, Reason, Cubase, Sonar, and more. It can be used to control VST instraments. Bome's also has an auto-chords setting where you press the root key of the chord and the rest of the chord plays automatically (according to the type of chord you select) and you can use it with an external MIDI keyboard as well. The software is available for non-commercial use by postcardware, which means you can send the author a postcard and receive the unlock key, so it's basically free.
And he posts the postcards on his site: