Cthulhu is for string trio (violin, viola and cello). Three instruments are creating a one meta instrument which has unnatural tape music kind of an envelope. The first three bars of music are the main theme of the music. The rest of the music comes from the main theme which means the developments of adsr in the first motive. Attack is the first bar, decay is the second bar and release is the third bar of the music. Each has their individual space through the music. There are also chords in the music which are in fact FM chords. I used Open Music and Max to generate frequency modulator chords.
Open Music Patch for FM