Double harmonic scale with quarter tones. Created by Hyacinth (talk) 07:11, 10 March 2010 using Sibelius 5. MIDI pitch bend appears to match intervals.
Harmonic seventh chord on C. Equal tempered major chord with quarter tone flat minor seventh (950 cents). Created by Hyacinth (talk) 18:56, 10 November 2011 with Sibelius 5.