The meaning of the title Interruptions derives from a procedure in which musical ideas are interrupted throughout the work. The piece begins with a drone in the lower strings. Over this drone interruptions occur, first in the timpani, then in the brass and finally in the woodwinds. Similarly, in the middle section, motives presented earlier in the piece begin to interrupt one another. The pitch material utilized in the piece is presented in the introduction. There are three principal motives: a repeated 32th note figure, an ascending major 7th and a descending minor 3rd. The piece has a unique structure: A-B-C-D-A. The different sections are linked through their motives. A varied form of the A section returns at the end creating a modified arch form.