Generate a low valence and high arousal music piece by creating an intense and fast-paced composition that evokes a sense of urgency and anticipation. Incorporate abrupt shifts in dynamics and utilize dissonant chords to amplify the tension within the piece. Experiment with irregular rhythms and virtuosic passages to add complexity and energy to the composition. The goal is to create a thrilling and exhilarating musical experience that keeps the listener on edge throughout the performance.