Over the past few days concert goers at the Aspen Music Festival heard a Chinese composer’s piece for piano and orchestra that swerved from celestial beauty to agonizing noise, a saxophonist who delineated music by composers from Baroque to Björk with a pop artist’s flair, Wynton Marsalis’ delightful jazz-infused version of a Stravinsky classic and a 45-minute rumination of the history of time that spread sections of the orchestra around the perimeter of the music tent.