The banjo is a four-, five- or (occasionally) six-stringed instrument with a thin membrane stretched over a frame or cavity as a resonator. The membrane is typically a piece of animal skin or plastic, and the frame is typically circular.

A bowed string instrument with four strings tuned in perfect fifths.Standard-sized cellos are referred to as "full-size" or "4/4" but are also made in smaller sizes.

Cymbals are a common percussion instrument. Cymbals consist of thin, normally round plates of various alloys.

Drums are membranous musical instruments.

Assorted musical instruments.