Debussy’s flute piece, Syrinx, lasts about three minutes, a magical development of a solo melody instrument, but Erber (b.1951) has not gone in for any of that absentmindedness. His cycle for the instrument takes an hour and comes freighted with metaphors of memory, disintegration and palimpsest-like survival that are deftly expounded in John Fallas’s booklet essay. You do not, though, need undue taste for the conceptual in music to withstand and even enjoy this astonishing erection of immense structure on so tiny a plinth. Erber has a way with the flute, and so, of course, does the virtuosic Cesari. Syrinxed-sized pieces are offered, too.