Open string
- For open strings in physics, see string (physics).
In music, an open string is a string of a string instrument that is played without stopping on the fingerboard. This table lists open strings on some common string instruments:
| Violin | G, D, A, E |
| Viola, Cello | C, G, D, A |
| Double bass | E, A, D, G |
| Classical guitar | E, A, D, G, B, E |