Delicate, bright string pipe used in certain German orchestrions; smaller scale and softer than the violin or cello. For example, many Hupfeld Helios and Popper orchestrions have a rank of louder violin pipes, and another rank of softer aeoline pipes.

. An instrument in which sound is produced by the vibration of air, as in an organ pipe.

Suction-operated (or rarely, pressure-operated) motor used for turning music rolls, or for other devices. * Also: wind motor or vacuum motor.

One tune or melody in a musical program.

The fan fly on the endless screw of the governor.