* 6th string: E2 (82.41 Hz)
* 5th string: A2 (110.00 Hz)
* 4th string: D3 (146.83 Hz)
* 3rd string: G3 (196.00 Hz)
* 2nd string: B3 (246.94 Hz)
* 1st string: E4 (329.63 Hz)