 At length, the dynamic suddenly softens to pianissimo and a new mood is created, where small motivic fragments are quietly passed between instruments in the orchestra above low string pizzicato – the effect is of mysterious, pulsating energy (the tempo remains Allegro).Intensity and urgency is gradually built up again, though the dynamic feels suppressed.A crescendo is built up until a new passage of energy is released, where a fast motive based on the note D is obsessively repeated, initially in the first violins and later passed to the woodwinds, above a dramatic tremolo from the violas and cellos.