←
329.6 Hz
SINE
E4
FREQUENCY
PLAY
WAVEFORM
SINE
SQUARE
SAWTOOTH
TRIANGLE
C3
(z)
C#3
(q)
D3
(x)
D#3
(w)
E3
(c)
F3
(v)
F#3
(r)
G3
(b)
G#3
(t)
A3
(n)
A#3
(y)
B3
(m)
C4
(a)
C#4
(2)
D4
(s)
D#4
(3)
E4
(d)
F4
(f)
F#4
(5)
G4
(g)
G#4
(6)
A4
(h)
A#4
(7)
B4
(j)
C5
(k)
Lower octave: Z-M (black keys: Q,W,R,T,Y)
Upper octave: A-K (black keys: 2,3,5,6,7)