Scientific pitch notation
Scientific Pitch Notation in music is a method of naming the notes of the standard western chromatic scale by appending a number identifying each octave, so that each note is unambiguously defined according to its fundamental frequency.
Example: A4 is the A above middle C, and has a fundamental frequency of 440.00 Hz.
This notation is useful, for example, when describing the written pitch and sounding pitch of a transposing instrument.
| Half tones from middle C | Frequency (Hz) | Note name | Octave number |
|---|---|---|---|
| −48 | 16.35 | C | 0 |
| −47 | 17.32 | C# | 0 |
| −46 | 18.35 | D | 0 |
| −45 | 19.45 | D# | 0 |
| −44 | 20.60 | E | 0 |
| −43 | 21.83 | F | 0 |
| −42 | 23.12 | F# | 0 |
| −41 | 24.50 | G | 0 |
| −40 | 25.96 | G# | 0 |
| −39 | 27.5 | A | 0 |
| −38 | 29.14 | A# | 0 |
| −37 | 30.87 | B | 0 |
| −36 | 32.70 | C | 1 |
| −35 | 34.65 | C# | 1 |
| −34 | 36.71 | D | 1 |
| −33 | 38,89 | D# | 1 |
| −32 | 41.20 | E | 1 |
| −31 | 43.65 | F | 1 |
| −30 | 46.25 | F# | 1 |
| −29 | 49.00 | G | 1 |
| −28 | 51.91 | G# | 1 |
| −27 | 55 | A | 1 |
| −26 | 58.27 | A# | 1 |
| −25 | 61.74 | B | 1 |
| −24 | 65.41 | C | 2 |
| −23 | 69.30 | C# | 2 |
| −22 | 73.42 | D | 2 |
| −21 | 77.78 | D# | 2 |
| −20 | 82.41 | E | 2 |
| −19 | 87.31 | F | 2 |
| −18 | 92.50 | F# | 2 |
| −17 | 98.00 | G | 2 |
| −16 | 103.8 | G# | 2 |
| −15 | 110 | A | 2 |
| −14 | 116.5 | A# | 2 |
| −13 | 123.5 | B | 2 |
| −12 | 130.8 | C | 3 |
| −11 | 138.6 | C# | 3 |
| −10 | 146.8 | D | 3 |
| −9 | 155.6 | D# | 3 |
| −8 | 164.8 | E | 3 |
| −7 | 174.6 | F | 3 |
| −6 | 185 | F# | 3 |
| −5 | 196 | G | 3 |
| −4 | 207.7 | G# | 3 |
| −3 | 220 | A | 3 |
| −2 | 233.1 | A# | 3 |
| −1 | 246.9 | B | 3 |
| 0 | 261.6 | C | 4 |
| 1 | 277.2 | C# | 4 |
| 2 | 293.7 | D | 4 |
| 3 | 311.1 | D# | 4 |
| 4 | 329.6 | E | 4 |
| 5 | 349.2 | F | 4 |
| 6 | 370 | F# | 4 |
| 7 | 392 | G | 4 |
| 8 | 415.3 | G# | 4 |
| 9 | 440 | A | 4 |
| 10 | 466.2 | A# | 4 |
| 11 | 493.9 | B | 4 |
| 12 | 523.3 | C | 5 |
| 13 | 554.4 | C# | 5 |
| 14 | 587.3 | D | 5 |
| 15 | 622.3 | D# | 5 |
| 16 | 659.3 | E | 5 |
| 17 | 698.5 | F | 5 |
| 18 | 740 | F# | 5 |
| 19 | 784 | G | 5 |
| 20 | 830.6 | G# | 5 |
| 21 | 880 | A | 5 |
| 22 | 932.3 | A# | 5 |
| 23 | 987.8 | B | 5 |
| 24 | 1047 | C | 6 |
| 25 | 1109 | C# | 6 |
| 26 | 1175 | D | 6 |
| 27 | 1245 | D# | 6 |
| 28 | 1319 | E | 6 |
| 29 | 1397 | F | 6 |
| 30 | 1480 | F# | 6 |
| 31 | 1568 | G | 6 |
| 32 | 1661 | G# | 6 |
| 33 | 1760 | A | 6 |
| 34 | 1865 | A# | 6 |
| 35 | 1976 | B | 6 |
| 36 | 2093 | C | 7 |
| 37 | 2217 | C# | 7 |
| 38 | 2349 | D | 7 |
| 39 | 2489 | D# | 7 |
| 40 | 2637 | E | 7 |
| 41 | 2794 | F | 7 |
| 42 | 2960 | F# | 7 |
| 43 | 3136 | G | 7 |
| 44 | 3322 | G# | 7 |
| 45 | 3520 | A | 7 |
| 46 | 3729 | A# | 7 |
| 47 | 3951 | B | 7 |
| 48 | 4186 | C | 8 |
| 49 | 4435 | C# | 8 |
| 50 | 4699 | D | 8 |
| 51 | 4978 | D# | 8 |
| 52 | 5274 | E | 8 |
| 53 | 5588 | F | 8 |
| 54 | 5920 | F# | 8 |
| 55 | 6272 | G | 8 |
| 56 | 6645 | G# | 8 |
| 57 | 7040 | A | 8 |
| 58 | 7459 | A# | 8 |
| 59 | 7902 | B | 8 |
| 60 | 8372 | C | 9 |
| 61 | 8870 | C# | 9 |
| 62 | 9397 | D | 9 |
| 63 | 9956 | D# | 9 |
| 64 | 10548 | E | 9 |
| 65 | 11175 | F | 9 |
| 66 | 11840 | F# | 9 |
| 67 | 12544 | G | 9 |
| 68 | 13290 | G# | 9 |
| 69 | 14080 | A | 9 |
| 70 | 14917 | A# | 9 |
| 71 | 15804 | B | 9 |