Mozart’s Jupiter Symphony – 1st Movement, arranged by Merle J. Isaac for full orchestra (Grade 3), is a spirited sonata-allegro movement showcasing Mozart’s mastery of counterpoint and thematic development. It opens with a bold, majestic theme introduced by the full ensemble, followed by a graceful second subject carried by winds and strings. Rich interplay between orchestral sections, dynamic contrasts, and a robust recapitulation make this arrangement both rewarding for intermediate ensembles and thrilling for audiences .