This month’s releases include two contrasted crossover discs, one in tribute to Armenian Orthodox church music, the other by, er, Phil Collins-era Genesis. There’s an Elgar oratorio, and a disc of choral music inspired by the untimely death of a young royal. Orchestral fireworks can be found in a recording of a well-known British work and there’s some approachable Modernism from a modern Polish master. There’s a thrilling compilation of viola concertos, and a classic recent set of Rachmaninov piano concertos reappears at a lower price. Gershwin turns up on an interesting French disc of 1920s music for piano and orchestra, and a work more often heard in a gaudy orchestral transcription is given an excellent solo piano reading by a young Welsh pianist. There’s an effervescent box of Baroque keyboard music played on piano, and a classic set of Shostakovich from the Brezhnev years reappears after a long absence. Chamber fans should check out Gidon Kremer’s latest release, and those unhappy in love should avoid revelatory readings of two of the best string quartets ever written.