
CD 6, Les heures persanes (1919). Beautiful music, highly experimental at times. The fascinating notes detail the exact places where Koechlin engages into polytonality, chords consisting of perfect fourths and fifths, atonality, twelve note areas, note repetitions as ostinatos, pedal notes/chords, parallel ninth chords, etc.
Considering the number of opuses Koechlin wrote during his very long life, it stands to reason that this set represents only a very partial account of his piano and chamber works. But, incomplete as it is, it’s still a fascinating and indispensable compendium. I should receive the set of orchestral works soon. I can’t wait!