Chord progression (half note open guitar chords) for the widely recorded ragtime influenced song written in 1923 by Jimmy Cox, "Nobody Knows You When You're Down and Out". It features chromaticism through chains of secondary dominants (III = V/V/V/V = V/vi, VI = V/V/V = V/ii, II = V/V, and V) and a secondary diminished seventh chord (viio7/V=♯IVo7).
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.
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.