A101286 Rounded frequencies in Hz of the notes of the chromatic music scale beginning at A.

55, 58, 62, 65, 69, 73, 78, 82, 87, 92, 98, 104, 110, 117, 123, 131, 139, 147, 156, 165, 175, 185, 196, 208, 220, 233, 247, 262, 277, 294, 311, 330, 349, 370, 392, 415, 440, 466, 494, 523, 554, 587, 622, 659, 698, 740, 784, 831, 880, 932, 988, 1047, 1109, 1175

Offset: 1

Author

Angela Johansson (angvi798(AT)student.liu.se), Dec 20 2004

Keywords

• nonn

Comments

The scale is equal-tempered. ("Wohltemperiert", introduced by Johann Sebastian Bach.)

Links

• T. Yahaya Abdullah, Music Scales, part of Synthesizers, Music and Television.
• Wikipedia, Equal temperament

Crossrefs

Cf. A071831, A071832, A071833.

Programs

Maple

A101286 := proc(n) round( 55*2.0^((n-1)/12.0)) ; end: seq(A101286(n),n=1..80) ; # R. J. Mathar, Mar 12 2008

Formula

a(1+n) = round(55*2^(n/12)). - R. J. Mathar, Mar 12 2008

Extensions

Corrected by T. D. Noe, Nov 02 2006

More terms from R. J. Mathar, Mar 12 2008