Prime Form
Normal Order
Click on piano keys or checkboxes to find the prime form and other information for any pitch-class set.

Also check out an updated and improved version of SetFinder at Prime Form Calculator by Paul Nelson at, a big site containing much useful information.

This page was written by Stephen Taylor. Please send me questions or comments: Last updated 15 January, 2006. Copyright 1997-2006 by Stephen Andrew Taylor.