Steve Reich Reich/Richter Ensemble Intercontemporain, George Jackson, conductor Nonesuch   Steve Reich has long admired the artwork of Gerhard Richter, whose abstraction and ties to minimalism seem tailor-made for a collaboration with the composer. The artist’s film Moving Picture (946-3), made with Corrina Belz and based on Richter’s book Patterns, provided just such an opportunity. Reich/Richter was composed to be performed alongside the film and has received over a hundred performances at screenings starting in 2019. This audio recording of the work is amply diverting on its own.    The piece is recognizably Reich, with ostinatos, polyrhythms and full-bodied harmonies