Sextet Number 1
The Sextet # 1 in B-flat Major was a work of European classical music composed by Johannes Brahms during Earth's late 19th century.
The second movement (Andante, ma moderato) was performed during a Mozart recital in honor of Vulcan ambassador Sarek aboard the USS Enterprise-D in late 2366. The music brought a tear to Ambassador Sarek's eye. (TNG: "Sarek")