Khan/khan-exercises — pull request #5706 by mjptak (2011-11-07 03:55:29+00:00)
Title: add-exercise circle of fifths

Another exercise without a home...this one making use of the telling time exercise to show the similarities between the modulo math of music and ...well math. No need to review as it does not fit into the near term definition of K-12 math. ...And the coding is about as bad as my guitar playing..