C Instrument - Level 3 - Digital Download SKU: A0.912850 Composed by Thomas Groh. Jazz. Lead Sheet / Fake Book. 5 pages. Thomas Groh #542145. Published by Thomas Groh (A0.912850). You certainly know John Coltrane's Impressions. The structure and the chords of my song are inspired by Impressions, however, the song is only half as long as Coltrane's, and instead of going from Emin7 to Ebmin7, it goes from Emin7 to DbMaj7. Lead Sheet includes C, Bb, Eb and bass versions of this song.