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−Δ/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.