1994 release (VERY RARE) ** "This important and rare CD was produced by Jonathan and Elizabeth Glasier, Gary Morrison, and Brian McLaren. This is the only extant permanent document of Darreg's work. Includes original booklet with reproductions of tuning charts. Ivor Darreg (1917-1994) was interested in both just intonations (tuning systems based on the ratios between the frequencies of the pitches) and equal temperaments (tunings with pitches equally spaced through the octave, which require a d…