A switch fingerboard for a violin, viola or cello, comprising:
- four columns of switches, wherein the switches are pressure sensitive switches which are configured to remain off unless being pressed down, wherein a spatial arrangement of switches corresponds to positions of notes of American Standard Pitch Notation on a fingering pattern chart of the violin, viola or cello,
- wherein the four columns of switches are arranged on the four columns in the following orders:
- for the violin:
- along a vertical projection of a 3G-string, corresponding to the positions of notes:
- 3G, 3G #, 3A, 3A #, 3B, 4C, 4C #, 4D, 4D #, 4E, 4F, 4F #, 4G, 4G #, 4A, 4A #, 4B, 5C, 5C #,
- along a vertical projection of a 4D-string, corresponding to the positions of notes:
- 4D, 4D #, 4E, 4F, 4F #, 4G, 4G #, 4A, 4A #, 4B, 5C, 5C #, 5D, 5D #, 5E, 5F, 5F #, 5G, 5G #,
- along a vertical projection of a 4A-string, corresponding to the positions of notes:
- 4A, 4A #, 4B, 5C, 5C #, 5D, 5D #, 5E, 5F, 5F #, 5G, 5G #, 5A, 5A #, 5B, 6C, 6C #, 6D, 6D #, and
- along a vertical projection of a 5E-string, corresponding to the positions of notes:
- 5E, 5F, 5F #, 5G, 5G #, 5A, 5A #, 5B, 6C, 6C #, 6D, 6D #, 6E, 6F, 6F #, 6G, 6G #, 6A, 6A #, or
- for the viola:
- along a vertical projection of a 3C-string, corresponding to the positions of notes:
- 3C, 3C #, 3D, 3D #, 3E, 3F, 3F #, 3G, 3G #, 3A, 3A #, 3B, 4C, 4C #, 4D, 4D #, 4E, 4F, 4F #,
- along a vertical projection of a 3G-string, corresponding to the positions of notes:
- 3G, 3G #, 3A, 3A #, 3B, 4C, 4C #, 4D, 4D #, 4E, 4F, 4F #, 4G, 4G #, 4A, 4A #, 4B, 5C, 5C #,
- along a vertical projection of a 4D-string, corresponding to the positions of notes:
- 4D, 4D #, 4E, 4F, 4F #, 4G, 4G #, 4A, 4A #, 4B, 5C, 5C #, 5D, 5D #, 5E, 5F, 5F #, 5G, 5G #, and
- along a vertical projection of a 4A-string, corresponding to the positions of notes:
- 4A, 4A #, 4B, 5C, 5C #, 5D, 5D #, 5E, 5F, 5F #, 5G, 5G #, 6A, 6A #, 5B, 6C, 6C #, 6D, 6D #, or
- for the cello:
- along a vertical projection of a 2C-string, corresponding to the positions of notes:
- 2C, 2C #, 2D, 2D #, 2E, 2F, 2F #, 2G, 2G #, 2A, 2A #, 2B, 3C, 3C #, 3D, 3D #, 3E, 3F, 3F #,
- along a vertical projection of a 2G-string, corresponding to the positions of notes:
- 2G, 2G #, 2A, 2A #, 2B, 3C, 3C #, 3D, 3D #, 3E, 3F, 3F #, 3G, 3G #, 3A, 3A #, 3B, 4C, 4C #,
- along a vertical projection of a 3D-string, corresponding to the positions of notes:
- 3D, 3D #, 3E, 3F, 3F #, 3G, 3G #, 3A, 3A #, 3B, 4C, 4C #, 4D, 4D #, 4E, 4F, 4F #, 4G, 4G #, and
- along a vertical projection of a 3A-string, corresponding to the positions of notes:
- 3A, 3A #, 3B, 4C, 4C #, 4D, 4D #, 4E, 4F, 4F #, 4G, 4G #, 4A, 4A #, 4B, 5C, 5C #, 5D, 5D #;
- wherein lengths (ΔL) of the switch positions, measured from a nut along the vertical projection of each of the four strings to a bridge on the fingerboard, are determined by a formula:
- ΔL=Lo(1−2−Δn/12), where Δn is an integer ranging from integer 1 to 18, and where Lo represents a length of the corresponding string between the nut and the bridge.