A non-functional example: transitional thirteenth chord from Music in Twelve Parts by Philip Glass.

Created by Hyacinth (talk) 02:52, 13 July 2009 using Sibelius 5.

See: Image:Music in Twelve Parts transitional thirteenth chord.png

The image linked here is claimed to be used under fair use as:

1. it is an analysis of the compositional process which created the piece, not the piece;
2. the transcription is only being used for informational purposes;
3. it is inferior to the original piece;
4. Its inclusion in the article adds significantly to the article because it shows a part of the chordal and voicing techniques used.