Gnu High was trumpeter/flugelhornist Kenny Wheeler's first for ECM, and Keith Jarrett's last session as a sideman: both deliver astonishing improvisations in a highly interactive quartet with Holland and DeJohnette, and Wheeler's writing is captivating. Luminessence Series ECM's new audiophile vinyl reissue series, is a kaleidoscope, shedding light on the jewels of the label's deep catalogue in elegant, high-quality editions. The hallmarks of the series: original and evocative music, imaginatively played and sensitively produced. The recordings underline the scope and variety of ECM's world of sound and the LPs are presented in different formats.