Longitudes is a live recording of the Overtone Ensemble performing live at the Liquid Architecture Festival. Edition of 1. Tim Catlin formed the Overtone Ensemble in 212 in order to perform works using his self-made "Vibrissa" instruments. Each instrument consists of twelve vertically mounted aluminum rods that are longitudinally stroked by hand to produce ethereal "singing" tones. The long sustaining nature of the rods sound and microtonal tunings allow players a sonic palette of complex textures and harmonic complexity. Other instruments used include massed hand-bells, quarter-tone bells, e-bowed acoustic guitars, re-tuned glockenspiels, wineglasses and long wire instruments. The ensemble's compositions utilize acoustic phenomena arising from microtonal tuning such as phasing, combination tones and sympathetic vibrations, as well the effects of room resonance. All sounds are acoustic in origin without effects or sound processing. The results are works of shimmering intensity and pulsating beauty. Recorded by Byron Scullin.