What is the frequency of a 2?

Frequencies for equal-tempered scale, A4 = 440 Hz NoteFrequency (Hz)Wavelength (cm)A2110.00313.64A#2/Bb2116.54296.03B2123.47279.42C3130.81263.74Frequencies of Musical Notes, A4 = 440 Hz pages.mtu.edu › ~suits › notefreqs