Morton Subotnick (14 aprile 1933): Parallel Lines per ottavino solista con “ghost electronics”, oboe, clarinetto/clarinetto basso, tromba, trombone, percussione, arpa, viola e violoncello (1979).

« The “ghost” score is a parallel composition to the piccolo solo. The ghost score amplifies and shifts the frequency of the original non-amplified piccolo sound. The two (“ghost” and original piccolo sounds), like a pair of parallel lines, can never touch, no matter how quickly or intricately they move. The work is divided into three large sections: (1) a perpetual-motion-like movement in which all parts play an equal role; (2) more visceral music, starting with the piccolo alone and leading to a pulsating “crying out”, and (3) a return to the perpetual motion activity, but sweeter » (Morton Subotnick).