5 25 {\displaystyle {\sqrt[{25}]{5}}} = 5:11/25 = 111.45 cents. Interval used in Stockhausen's Studie II, a compound just major third (5/1) divided into 25 equal parts.
A thirteenth chord "collapsed" into one octave results in a dissonant, seemingly secundal[1] tone cluster. Created by Hyacinth (talk) 22:18, 5 July 2009 using Sibelius 5.
CM13, first inversion = e13(♭9), 2nd inversion = G13... Eventually seven chords along a ladder of thirds. Created by Hyacinth (talk) 14:13, 31 March 2010 using Sibelius 5.
Thirteenth chord inversion with no fifth or ninth and the flatted seventh in the bass. Different voicing for guitar. Created by Hyacinth (talk) 14:10, 7 July 2009 using Sibelius 5.
*Augmented unison on C = C♯. Equal-tempered: 21/12:1 = 100 cents. MIDI pitch bend: none Note how the diminished unison is essentially equivalent to the augmented unison.