98_Chasin_153-162Apdx 12/6/08 10:30 AM Page 153
E
1
F
1
G
1
A
1
B
1
C
1
D
1
E
0
F
0
G
0
A
0
B
0
C
0
D
0
16
18
21
22
25
28
31
33
37
41
44
49
A
3
B
3
C
3
D
3
E
3
F
3
G
A
4
B
4
C
4
D
4
E
F
G
3
4
4
4
110
123
131
147
165
175
196
220
247
262
294
330
349
392
A
6
B
6
C
6
D
6
E
6
F
6
G
A
7
B
7
C
7
D
7
E
F
G
6
7
7
7
880
988
1047
1175
1319
1397
1568
1760
1976
2093
2349
2637
2794
3136
E
2
F
2
G
2
A
2
B
2
C
2
D
2
55
62
65
73
82
87
98
A
5
B
5
C
5
D
5
E
F
G
5
5
5
440
494
523
587
659
698
784
A
8
B
8
C
8
D
8
E
F
G
8
8
8
3520
3951
4186
4699
5274
5588
6272
Conversion chart from letter note to frequency (Hz). Middle C on the piano keyboard is C
4 the highest note on the piano is C
8 at 4186 Hz. Hearing is typically tested between C
4 at 262 Hz, and and an octave above the highest note on the piano keyboard. A common notation is to have both the note and the frequency together, as A[440], which is also A
5
. To get the semitone frequency, multiply the note below it by 12 √ 2 or
1.0595. Note. From The Acoustical Foundations of Music (p. 153), by J. Backus, 1977, New York: W. W.
Norton & Company, Inc. Copyright 1977 by W. W. Norton & Company, Inc. Adapted with permission.
153