B. Parsons is a contemporary American jazz arranger renowned for their innovative contributions to large ensemble jazz. Active since the early 2000s, Parsons's distinctive style blends modern harmonic concepts with a deep respect for the swing tradition, creating vibrant and challenging charts for big bands. Their work often features intricate counterpoint and sophisticated voicings, pushing the boundaries of the jazz orchestra while maintaining a strong rhythmic drive. Parsons has collaborated with numerous prominent jazz soloists and ensembles, and their arrangements are regularly performed by university and professional big bands worldwide, contributing significantly to the evolution of contemporary big band literature.