Pitch and frequency of notes in our modern music system (440 Hz)

This table shows the frequency compared to the pitch on guitar (and other instruments), based on the standard tuning in our modern western music system with A4=440 Hz

Let’s do some math exercises first 🙂 ! 
In the equally floating tuning, the tone distance between adjacent tones is the same for all tones. Therefore, this ratio is equal to the twelfth square root of power of 2: POWER(2;1/12) = 1.05946309.
This means if we take A5 with a frequency pitch of 880 Hz, the semitone above A# is approximately 932,3 Hz (= 1,05946309 × 880).

Example with the formula in Microsoft Excel
A#4 is 1 semitone higher than A4
A#4 = 440*POWER(POWER(2;1/12);1) = 466.1 Hz

B4 is 2 semitones higher than A4
B4 = 440*POWER(POWER(2;1/12);2) = 493.8 Hz

A5 is 12 semitones higher than A4
B4 = 440*POWER(POWER(2;1/12);12) = 880 Hz

note 0 1 2 3 4 5 6 7 8 9
C 16,35 32,7 65,4 130,8 261,6 523,2 1046 2093 4186 8372
C# 17,32 34,64 69,29 138,5 277,1 554,3 1108 2217 4434 8869
D 18,35 36,7 73,41 146,8 293,6 587,3 1174 2349 4698 9397
D# 19,44 38,89 77,78 155,5 311,1 622,2 1244 2489 4978 9956
E 20,6 41,2 82,4 164,8 329,6 659,2 1318 2637 5274 10548
F 21,82 43,65 87,3 174,6 349,2 698,4 1396 2793 5587 11175
F# 23,12 46,24 92,49 184,9 369,9 739,9 1479 2959 5919 11839
G 24,49 48,99 97,99 195,9 391,9 783,9 1567 3135 6271 12543
G# 25,95 51,91 103,8 207,6 415,3 830,6 1661 3322 6644 13289
A 27,5 55 110 220 440 880 1760 3520 7040 14080
A# 29,13 58,27 116,5 233 466,1 932,3 1864 3729 7458 14917
B 30,86 61,73 123,4 246,9 493,8 987,7 1975 3951 7902 15804

NOTES ON THE GUITAR FRETBOARD (WITH SHARPS # AND FLATS b)

Note : a C# and Db is in our Western music exact the same note (enharmonic). BUT, in music theory a C# is not the same as a Db!

Noten op het gitaar fretboard

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