The Fauré Quartet in the Apple Store This image appears in the gallery:Sven Helbig's Pocket Symphonies pop-up concerts 12. The Fauré Quartet in the Apple Store The Fauré surprise and delight customers in the Apple Store as part of a day of pop-up concerts. 15 images See the full gallery: Sven Helbig's Pocket Symphonies pop-up concerts