During live performances Jones frequently improvised on keyboards and performed parts of classical music . On the band 's ninth North American tour in 1973 , performances of the song lasted twice the length of the studio version . On Led Zeppelin 's concert tours from 1975 onwards , Jones would also play a short piano concerto ( on a Steinway B-211 grand piano ) frequently turning the seven-minute song into a performance exceeding twenty and sometimes even thirty to thirty-five minutes , in a handful of cases . Page and Bonham would always join him later in the song . He was particularly fond of playing Rachmaninoff pieces , but sometimes included Joaquín Rodrigo 's '' Concierto de Aranjuez '' and " Amazing Grace " as part of an extended medley
ninth North American tour
Led Zeppelin North American Tour 1973
No Quarter (song)