Music - Even tempered scale - Frequencies and MIDI note numbers


note octave frequency midi note number
C natural 1 32 24
C sharp 1 34 25
D natural 1 36 26
D sharp 1 39 27
E natural 1 41 28
F natural 1 43 29
F sharp 1 46 30
G natural 1 49 31
G sharp 1 52 32
A natural 1 55 33
A sharp 1 59 34
B natural 1 62 35
C natural 2 65 36
C sharp 2 69 37
D natural 2 73 38
D sharp 2 78 39
E natural 2 82 40
F natural 2 87 41
F sharp 2 93 42
G natural 2 98 43
G sharp 2 104 44
A natural 2 110 45
A sharp 2 117 46
B natural 2 124 47
C natural 3 131 48
C sharp 3 139 49
D natural 3 147 50
D sharp 3 156 51
E natural 3 165 52
F natural 3 175 53
F sharp 3 185 54
G natural 3 196 55
G sharp 3 208 56
A natural 3 220 57
A sharp 3 233 58
B natural 3 247 59
C natural 4 262 60 middle
C sharp 4 277 61
D natural 4 294 62
D sharp 4 311 63
E natural 4 330 64
F natural 4 349 65
F sharp 4 370 66
G natural 4 392 67
G sharp 4 415 68
A natural 4 440 69
A sharp 4 466 70
B natural 4 494 71
C natural 5 523 72
C sharp 5 554 73
D natural 5 587 74
D sharp 5 622 75
E natural 5 659 76
F natural 5 698 77
F sharp 5 740 78
G natural 5 784 79
G sharp 5 831 80
A natural 5 880 81
A sharp 5 932 82
B natural 5 988 83
C natural 6 1047 84
C sharp 6 1109 85
D natural 6 1175 86
D sharp 6 1245 87
E natural 6 1318 88
F natural 6 1397 89
F sharp 6 1480 90
G natural 6 1568 91
G sharp 6 1661 92
A natural 6 1760 93
A sharp 6 1865 94
B natural 6 1976 95
C natural 7 2093 96
C sharp 7 2218 97
D natural 7 2350 98
D sharp 7 2489 99
E natural 7 2637 100
F natural 7 2794 101
F sharp 7 2960 102
G natural 7 3136 103
G sharp 7 3323 104
A natural 7 3520 105
A sharp 7 3729 106
B natural 7 3951 107
C natural 8 4186 108

2.2 Even tempered scale

What is important in music is the relationship between the musical notes.

In order to be able to play in any key, on a keyboard instrument it is necessary to alter these frequencies slightly to form a logarithmic scale.

The ratio of the frequencies of the notes of a major scale is as follows:

--\ major key degree of the scale

| C --------------------------- ?----\

--| 15:16 |

| B ----------------------?---- leading |

H-| 8:9 | | *

| A -------------------?--|---- submediant ?--|

H-| 9:10 | | | *

| G ----------------?--|--|---- dominant ?--|-\

H-| 8:9 | | | | | *

| F -------------?--|--|-8:15-- subdominant ?--/ |

--| 15:16 | | 3:5 | |

| E ----------?--|-2:3-|--|---- medient ?----|

H-| 9:10 | 3:4 | | | | *

| D ---------4:5-|--|--|--|---- supertonic |

H-| 8:9 | | | | | | *

| C ----------?--?--?--?--?---- tonic ?----/

--/

 


metadata block
see also:

 

Correspondence about this page

Book Shop - Further reading.

Where I can, I have put links to Amazon for books that are relevant to the subject, click on the appropriate country flag to get more details of the book or to buy it from them.

cover The Art of 3-D Computer Animation and Effects. This is a nice glossy colour book, it is for those starting out using 3D graphics programs rather than those who write them.

Commercial Software Shop

Where I can, I have put links to Amazon for commercial software, not directly related to the software project, but related to the subject being discussed, click on the appropriate country flag to get more details of the software or to buy it from them.

cover Palm Treo 650 GSM/GPRS Smartphone

This site may have errors. Don't use for critical systems.

Copyright (c) 1998-2015 Martin John Baker - All rights reserved - privacy policy.