On "False Idols, " the dreamy orchestral strings that enrich "Nothing's Changed, " sung by Francesca Belmonte, began as an experiment with a synth sound, as did the song's skippy drum loop.

WSJ: Tricky Business: Style Built on Samples | By Jim Fusilli

Vincent, Merrill Garbus's Tune-Yards and Laura Marling, who added a cello and brass to her retro-folk sound, presented polished, high-concept chamber pop, as did Other Lives, who impressed with melodramatic baroque folk featuring strings, orchestral synths and vocal harmonies in support of the quietly charismatic singer Jesse Tabish.

WSJ: Coachella's Modern Mosaic | By Jim Fusilli

The orchestral swells are still there, complete with strings and horns, and The Arcade Fire's signature sound hasn't changed much.

NPR: The Arcade Fire: Growing Up, Getting Better