Jean-Philippe Rameau, Platée (1745), Act II sc. 5: La Folie's ariette Essayons du brillant ... Aux langueurs d'Apollon (D major, Rameau's key), string quartet with the voice on Vln I. From Jean-Marie Aguessy's edition for soprano and two cellos (IMSLP 449674, MusicXML), read with music21: Vln I = La Folie, and cello 1 an octave up where she rests; Vln II = cello 1 an octave up; viola = cello 1 at pitch; cello = cello 2. Form as the edition's marks: from Essayons du brillant through the Lent, dal segno al Fine (208 bars). 6/8 at dotted quarter = 84. Graces written out; double stops reduced to one note per player; no trills. Arranged by Claude (Anthropic AI), 2026.