An orchestra in this city is the dedicatee of a 1997 set of variations that is based on two hexachords that together feature all 12 notes of the chromatic scale. This city provides the title for the first of Arvo Pärt’s works to feature tintinnabulation on an orchestral scale, his Fourth Symphony. A swashbuckling D major violin concerto written in this city that was popularized by Jascha Heifetz was the first postwar work for the concert hall by Erich (-5[1])Wolfgang Korngold. In the 1930s, both Arnold Schoenberg and (-5[1])Igor Stravinsky permanently relocated to this city. Former music director Esa-Pekka Salonen inaugurated a Frank Gehry-designed venue in this city. For 10 points, name this American city whose Philharmonic is currently led by Gustavo Dudamel (10[2])from its Walt Disney Concert Hall. ■END■ (10[1])