Musical Note to Frequency Conversion Chart

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98_Chasin_153-162Apdx 12/6/08 10:30 AM Page 153

APPENDIX A

Musical Note to Frequency

Conversion Chart

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

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