Air valves and Cylinders controlling 42 instruments sculpted as a metal tree.

WHY: I thought it would be cool might be the best answer. I had a small team that liked challenges and creating cool things. We did this for the Hannover Fair trade show in Germany. It was fantastically successful and fun to do.

• 68 Air Valves

• 64 Air Cylinders

• 24 Electronic Dulcimer Strings

• 16 Pneumatic Tubs

• 7 Percussive Instruments

Its final home prior to being repurposed in 2011 was an interactive display at the Cincinnati Museum Center where people enjoyed it beauty and sounds.