Mahler Symphony No. 8 in E flat major'Symphony of a Thousand' (82 mins)Mardi Byers: sopranoTwyla Robinson: sopranoMalin Christensson: sopranoStephanie Blythe: mezzo-sopranoKelley O'Connor: mezzo-sopranoStefan Vinke: tenorHanno Müller-Brachmann: bass-baritoneTomasz Konieczny: bassChoristers of St Paul's CathedralChoristers of Westminster AbbeyChoristers of Westminster CathedralBBC Symphony ChorusCrouch End Festival ChorusSydney Philharmonia ChoirsBBC Symphony OrchestraJirí Belohlávek conductor