Note frequencies list 12-note scales Twelve-tone equal temperament (A4 = 440 Hz) C0 = 16.351597831287415 Hz C#0 / Db0 = 17.323914436054506 Hz D0 = 18.354047994837973 Hz D#0 / Eb0 = 19.445436482630057 Hz E0 = 20.601722307054370 Hz F0 = 21.826764464562743 Hz F#0 / Gb0 = 23.12465...