History of Sleep is a new release of slumberous drones for midnight vistas, by the duo of Donald W.G. Lindsay and Richard Youngs, a small pipes and electric guitar duo. These four pieces contain sighing, soaring improvisations for half-waking states, with keening bagpipe and whorls of resonant guitar. The 20-minute long finale, 'Dorrington' has at its heart a cue from the oldest collection of bagpipe music in existence by William Dixon. This tune was once played by the Allan pipers Will and Jami…