The list of frequencies you can use from the ascii are these for /playpianomp3

A0: 27.50,
A#0: 29.14,
B0: 30.87,
C1: 32.70,
C#1: 34.65,
D1: 36.71,
D#1: 38.89,
E1: 41.20,
F1: 43.65,
F#1: 46.25,
G1: 49.00,
G#1: 51.91,
A1: 55.00,
A#1: 58.27,
B1: 61.74,
C2: 65.41,
C#2: 69.30,
D2: 73.42,
D#2: 77.78,
E2: 82.41,
F2: 87.31,
F#2: 92.50,
G2: 98.00,
G#2: 103.83,
A2: 110.00,
A#2: 116.54,
B2: 123.47,
C3: 130.81,
C#3: 138.59,
D3: 146.83,
D#3: 155.56,
E3: 164.81,
F3: 174.61,
F#3: 185.00,
G3: 196.00,
G#3: 207.65,
A3: 220.00,
A#3: 233.08,
B3: 246.94,
C4: 261.63,
C#4: 277.18,
D4: 293.66,
D#4: 311.13,
E4: 329.63,
F4: 349.23,
F#4: 369.99,
G4: 392.00,
G#4: 415.30,
A4: 440.00,
A#4: 466.16,
B4: 493.88,
C5: 523.25,
C#5: 554.37,
D5: 587.33,
D#5: 622.25,
E5: 659.26,
F5: 698.46,
F#5: 739.99,
G5: 783.99,
G#5: 830.61,
A5: 880.00,
A#5: 932.33,
B5: 987.77,
C6: 1046.50,
C#6: 1108.73,
D6: 1174.66,
D#6: 1244.51,
E6: 1318.51,
F6: 1396.91,
F#6: 1479.98,
G6: 1567.98,
G#6: 1661.22,
A6: 1760.00,
A#6: 1864.66,
B6: 1975.53,
C7: 2093.00,
C#7: 2217.46,
D7: 2349.32,
D#7: 2489.02,
E7: 2637.02,
F7: 2793.83,
F#7: 2959.96,
G7: 3135.96,
G#7: 3322.44,
A7: 3520.00,
A#7: 3729.31,
B7: 3951.07,
C8: 4186.01,
SPACE: 0,
A: 440.00,
B: 493.88,
C: 523.25,
D: 587.33,
E: 659.26,
F: 698.46,
G: 783.99

The list of frequencies you can use from the ascii are these for /playmp3

'A': 440.00,
'B': 466.16,
'C': 493.88,
'D': 523.25,
'E': 554.37,
'F': 587.33,
'G': 622.25,
'H': 659.26,
'I': 698.46,
'J': 739.99,
'K': 783.99,
'L': 830.61,
'M': 880.00,
'N': 932.33,
'O': 987.77,
'P': 1046.50,
'Q': 1108.73,
'R': 1174.66,
'S': 1244.51,
'T': 1318.51,
'U': 1396.91,
'V': 1479.98,
'W': 1567.98,
'X': 1661.22,
'Y': 1760.00,
'Z': 1864.66,
'a': 220.00,
'b': 233.08,
'c': 246.94,
'd': 261.63,
'e': 277.18,
'f': 293.66,
'g': 311.13,
'h': 329.63,
'i': 349.23,
'j': 369.99,
'k': 392.00,
'l': 415.30,
'm': 440.00,
'n': 466.16,
'o': 493.88,
'p': 523.25,
'q': 554.37,
'r': 587.33,
's': 622.25,
't': 659.26,
'u': 698.46,
'v': 739.99,
'w': 783.99,
'x': 830.61,
'y': 880.00,
'z': 932.33,
'0': 941.0,
'1': 697.0,
'2': 697.0,
'3': 697.0,
'4': 770.0,
'5': 770.0,
'6': 770.0,
'7': 852.0,
'8': 852.0,
'9': 852.0,
' ': 0,  # Space character mapped to silence
'!': 1760.00,
'@': 1864.66,
'#': 220.00,
'$': 233.08,
'%': 246.94,
'^': 261.63,
'&': 277.18,
'*': 293.66,
'(': 311.13,
')': 329.63,
'-': 349.23,
'_': 369.99,
'+': 392.00,
'=': 415.30,
'[': 440.00,
']': 466.16,
'{': 493.88,
'}': 523.25,
'|': 554.37,
'\\': 587.33,
';': 622.25,
':': 659.26,
',': 698.46,
'.': 739.99,
'/': 783.99,
'?': 830.61,
'<': 880.00,
'>': 932.33,
'`': 987.77,
'~': 1046.50,