Music notation and diesel engine: what they have in common

1. Step 1. Music notation — is used in — Player piano. The rolls encode notes.
2. Step 2. Player piano — has part — Bellows. Pedal bellows create suction.
3. Step 3. Bellows — has part — Check valve. An air intake valve.
4. Step 4. Check valve — is part of — Piston pump. Check valves direct the flow.
5. Step 5. Piston pump — has part — Cylinder. The piston moves in a cylinder.
6. Step 6. Cylinder — is part of — Diesel engine. Cylinders.

Open Evothings