Power chords in progression create parallel fifths, though the prohibit is not relevant since there is not intention to create independent voices. Created by Hyacinth (talk) 03:21, 29 January 2012 (UTC) using Sibelius 5.
Quartal chord on A equals thirteenth chord on B♭, distinguished by the arrangement of chord factors. Created by Hyacinth (talk) 13:55, 13 October 2010 using Sibelius 5.