Chris Kline wrote this prelude in 10 equal divisions of the octave. He was working it up on piano/keyboard, and I thought it would be very nice to have the udderbot double the melody. We both think that it worked out quite nicely!
https://www.youtube.com/watch?v=7wPugAbHC7Y
Difficulty level: intermediate to hard. Nailing the pitches are not hard. Phrases are long and require plenty of breath.