Cherubino's aria from The Marriage of Figaro

One of the best-­ known solos in Le nozze di Figaro (The Marriage of Figaro) is Cherubino’s act 1 aria “Non so più cosa son, cosa faccio,” composed by Mozart between May and November 1785. This manuscript—titled “Aria di Cherubino” in Mozart’s hand—is an arrangement of the aria for piano, violin, and voice. Judging from the type of paper Mozart used, the manuscript likely dates from late November 1785 or December 1785, and no later than March 1786. Why Mozart created this alternate version is unknown, though it may have been intended for private use. No public performances are known, and no edition was ever published. Very few autograph arrangements of opera excerpts by Mozart survive.