Describing his influences
and early approach to music Greenwich says: 'It started with Sonny Rollins. The way he played his tenor sax. When I heard
his big sound, I said to myself, this is what I want to get on the guitar, this sound, this kind of feeling! I went from there
to Miles Davis and John Coltrane ... they led me to start playing my instrument more like a horn than a guitar. I was always
searching into style back then. After reading, in my late teens, statements made by Charlie Parker, that he listened primarily
to classical music, I was moved to do the same. A practice I have continued to this day. ... The solo structures of my playing
were based on an interpretation of the work of cubist artist Paul Klee, where I saw the fretboard in diagrams, while my chordal
approach was based on the music of Ravel, Debussy, Hindemith, Red Garland and Bill Evans. I was also interested in the control
and timbre of the human voice, and listened carefully to such singers as Maria Callas, and have made studies on sound itself.”