MIDI Note	ANSI Note	Frequency (hz)
21	A0 🎼	27.5
22	A#0 🎼^♯	29.1
23	B0 🎼	30.9
24	C1 🎼	32.7
25	C#1 🎼^♯	34.6
26	D1 🎼	36.7
27	D#1 🎼^♯	38.9
28	E1 🎼	41.2
29	F1 🎼	43.7
30	F#1 🎼♯	46.2
31	G1 🎼	49.0
32	G#1 🎼♯	51.9
33	A1 🎼	55.0
34	A#1 🎼^♯	58.3
35	B1 🎼	61.7
36	C2 🎼	65.4
37	C#2 🎼^♯	69.3
38	D2 🎼	73.4
39	D#2 🎼^♯	77.8
40	E2 🎼	82.4
41	F2 🎼	87.3
42	F#2 🎼♯	92.5
43	G2 🎼	98.0
44	G#2 🎼♯	103.8
45	A2 🎼	110.0
46	A#2 🎼^♯	116.5
47	B2 🎼	123.5
48	C3 🎼	130.8
49	C#3 🎼^♯	138.6
50	D3 🎼	146.8
51	D#3 🎼^♯	155.6
52	E3 🎼	164.8
53	F3 🎼	174.6
54	F#3 🎼♯	185.0
55	G3 🎼	196.0
56	G#3 🎼♯	207.7
57	A3 🎼	220.0
58	A#3 🎼^♯	233.1
59	B3 🎼	246.9
60	C4 (middle C) 🎼	261.6
61	C#4 🎼^♯	277.2
62	D4 🎼	293.7
63	D#4 🎼^♯	311.1
64	E4 🎼	329.6
65	F4 🎼	349.2
66	F#4 🎼♯	370.0
67	G4 🎼	392.0
68	G#4 🎼♯	415.3
69	A4 🎼	440.0
70	A#4 🎼^♯	466.2
71	B4 🎼	493.9
72	C5 🎼	523.3
73	C#5 🎼^♯	554.4
74	D5 🎼	587.3
75	D#5 🎼^♯	622.3
76	E5 🎼	659.3
77	F5 🎼	698.5
78	F#5 🎼♯	740.0
79	G5 🎼	784.0
80	G#5 🎼♯	830.6
81	A5 🎼	880.0
82	A#5 🎼^♯	932.3
83	B5 🎼	987.8
84	C6 🎼	1046.5
85	C#6 🎼^♯	1108.7
86	D6 🎼	1174.7
87	D#6 🎼^♯	1244.5
88	E6 🎼	1318.5
89	F6 🎼	1396.9
90	F#6 🎼♯	1480.0
91	G6 🎼	1568.0
92	G#6 🎼♯	1661.2
93	A6 🎼	1760.0
94	A#6 🎼^♯	1864.7
95	B6 🎼	1975.5
96	C7 🎼	2093.0
97	C#7 🎼^♯	2217.5
98	D7 🎼	2349.3
99	D#7 🎼^♯	2489.0
100	E7 🎼	2637.0
101	F7 🎼	2793.8
102	F#7 🎼♯	2960.0
103	G7 🎼	3136.0
104	G#7 🎼♯	3322.4
105	A7 🎼	3520.0
106	A#7 🎼^♯	3729.3
107	B7 🎼	3951.1
108	C8 🎼	4186.0

Music Note/Scale Player & Composer

Thanks to mudcube and The Glass Armonica

Via
RJM Programming - May, 2015

Click on links in table at for scales/Song Creation

Equations:

f = frequency
m = midi note number

f = 27.5 * 2^{((m - 21)/12)}

m = (12/ln(2)) * ln(f/27.5) + 21

Note: Fractional midi note number will give you 'cents'
from standard pitch: e.g. 66.33 would be 33 cents above F#4