ماخذ: Joan Tower. This work derives from a drawing the composer once did of colour rays emanating from a black piano-like object. Score.
ترجمه: برج خوان. سیاه و سفید توپاز. نمره. قطعات. نت موسیقی. Piano, Clarinet, Flute, Trumpet, Trombone, Double Percussion. PF. CLT. FLT. TPT.