Description
This is a short humorous atonal piece in which the piano provides 10 of the notes in the 12-tone sequence (you might call them “double-pentatonic chords”), whilst the clarinet “plugs in” the remaining 2 notes to complete the series of 12 notes.
Each set of 4 bars goes up one semitone four times and then the piece returns to the original double-pentatonic chord.
By way of variation, from bar 22, the piano repeats the clarinet’s introduction.