<Li> "August's Rhapsody" Written by Mark Mancina </Li> <P> The final number with Lyla and Louis begins with Lyla playing the Adagio - Moderato from Edward Elgar's Cello Concerto in E Minor . </P> <P> Except for "Dueling Guitars", all of August's guitar pieces were played by American guitarist - composer Kaki King . King's hands are used in close - ups for August Rush . </P> <P> Composer Mark Mancina spent over a year and a half composing the score of August Rush . "The heart of the story is how we respond and connect through music . It's about this young boy who believes that he's going to find his parents through his music . That's what drives him ." The final theme of the movie was composed first . "That way I could take bits and pieces of the ending piece and relate it to the things that are happening in (August's) life . All of the themes are pieces of the puzzle, so at the end it means something because you've been subliminally hearing it throughout the film ." The score was recorded at the Todd - AO Scoring Stage and the Eastwood Scoring Stage at Warner Brothers . </P>

Who plays the guitar in the movie august rush