Two Pieces op.9 (Glières Two Pieces, Op. 9 is an early work, originally written for double bass player (and conductor) Serge Koussevitzky.. The Intermezzo is lyrical, sensual and "Eastern" sounding. The Tarantella is a sprightly folk dance of southern Italy. The curious name comes from the "wolf spider" or Tarantula whose bite is highly poisonous and in earlier times was believed to cause the victims to engage in a frenzied dance. The two movements are about 9.5 minutes in length and are appropriate for advanced performers. )