**Four
Voice Canon #16 (“Canon in One Octave for Arthur Farwell”)**

*Date*: 2002.

*Place*: New
Hampshire.

*Comments*: “ProTools”
piece, using the generalized notion of a single click track. No permutations.
Two versions, *a* (sparse to dense), *b *(dense to sparse). Each of the 13
voices is one note, as a 4/4 click track, using a simple marimba preset on a
MIDI keyboard. The first note of each four note grouping is accented. Each
voice starts quietly, rises to full loudness over its life (in *b*, the reverse).

The pitches/tempi are derived from 13 ratios within an octave, all simple
combinations of 2, 3, 5, 7, and 11. The pitches tuned to these ratios. The
tempo/pitch ratios are (tempo, ratio, approximate “letter name” pitch):

**60** 1/1 A **70** 7/6 C **72** 6/5 C **75** 5/4 C# **80**
4/3 D **84** 7/5 Eb **90** 3/2 E

**96** 8/5 F **100** 5/3 F# **105** 7/4 G **108** 9/5 G **110**
11/6 G# **120** 2/1 A

** **