note-frequency
Simple node module to calculate node frequencies.
Default is 12 tone system with base tone of A = 440hz
But you can make any frequencies of the notes of an equal tempered scale:
E.g. 7 note system with a base tone of 410hz
An explanation can be found here:
http://www.phy.mtu.edu/~suits/notefreqs.html
Usage: See test.js
License
MIT © Dennis Iversen