Vivaldi, "Spring" (La Primavera, The Four Seasons), first movement — arranged for violin and viola (D major, 4/4, quarter = 96, about four minutes). Arranged 2026-10-14 for Graham (viola) and a beginner violin friend, for Classical Jams Austin. Vivaldi's own order, compressed: the ritornello (loud, then the soft echo), the birds, the brook, the storm, the tune in B minor, the birds again, sunshine, the runs, the whole ritornello once more. The violin plays the famous tune in first position on the D string and never rests; the viola takes every virtuoso bit — bird trills and chirps, the murmuring brook, tremolo, lightning scales and arpeggios, the long trill, the solo runs — and plays the tune alone once, warm, in A major. Draft v1 — verdict pending.