This is the first of a series of London Sinfonietta concerts to be guest conducted by Adès over the next month, including touring performances outside London where his piano concerto In Seven Days is coupled with a different Reich piece, Music for 18 Musicians. It was less than 18 months ago that the Sinfonietta performed that work at the Southbank Centre with a live relay open to all in the foyer, which proved very popular; rather than have to match that performance, I think they have made a canny programming choice by enticing some of the potential new audience gained by that concert with a less famous piece by the same composer. The combination of two Biblically-inspired pieces in this concert is also arguably a more interesting and appropriate pairing.