Do you have Christmas light show envy?
Do you want your house to light up the neighborhood when the snow starts to fly? Here's how you can build your own mini Xmas light show.
This particular project isn't as hard as you might think. Really, when you deconstruct how it works, the Raspberry Pi just plays a MIDI file and an MP3 file at the same time. Each of these audio files is playing the same song/melody in sequence. An application called Lightorgan, in a way, "listens" to the MIDI file as it is played and turns on the GPIO pins of your Raspberry Pi's in sequence with the song.
Find all the instructions, including the hardware and software I used, on my blog: http://zacvineyard.com/blog/2013/11/building-a-christmas-music-light-show-with-a-raspberry-pi