A131062 Rounded frequencies of notes in a Pythagorean scale, starting with 260.7 Hertz for a C.

261, 293, 330, 348, 391, 440, 495, 521, 587, 660, 695, 782, 880, 990, 1043, 1173, 1320, 1391, 1564, 1760, 1980, 2086

Offset

1,1

Comments

The approximate value of 260.7 Hz for the C corresponds to 16/27 * 440 Hz. The frequencies correspond to the ratios [1/1, 9/8, 81/64, 4/3, 3/2, 27/16, 243/128, 2/1].

Links

Table of n, a(n) for n=1..22.

Wikipedia, Just intonation - Pythagorean tuning.

Wikipedia, Pythagorean tuning.

Index entries for sequences related to music.

Crossrefs

Cf. A131071 for the same scale including half-tones.

Cf. A071831/A071832 = A071833/24. - M. F. Hasler, Jun 14 2012

Cf. A101285.

Sequence in context: A131071 A345559 A345814 * A079506 A028527 A014569

Adjacent sequences: A131059 A131060 A131061 * A131063 A131064 A131065

Keyword

nonn

Author

Hans Isdahl, Sep 24 2007

Extensions

Value of a(8) corrected, sequence extended to 3 octaves and comments added by M. F. Hasler (following suggestions by Franklin T. Adams-Watters and Charles R Greathouse IV), Oct 05 2011

Status

approved