The music here represents Charlemagne’s infamous “strumming” technique, which he describes himself in a 2002 interview with Perfect Sound Forever as follows: “My first piano music resembles impressionists like Debussy or Ravel but it’s played through four or five hours, including some little arpeggios and played over and over again in thousands of different ways… Later on, I began to see that I’d played the piano like a flamenco guitar, that many overtones could change and the music that came out had a density and verticality – thanks to the overtones – which was extraordinary.”'