concertina
A concertina is a bellow-driven instrument. It usually has symmetrical sides and its bellow is square, hexagonal or octagonal. Often mistakenly tagged as accordion.
- Examples:
- Square: post #1011465
- Hexagonal: post #2888534
- Octagonal: post #3114877
External links
- Wikipedia article: Concertina
This tag implicates instrument (learn more).