Piano Concerto Number 17
From Memory Alpha, the free Star Trek reference
The Piano Concerto #17 in G Major, K. 453 is a musical work composed by Wolfgang Amadeus Mozart in the late 18th century.
The third movement of the piece (Allegretto) was played during the reception on Arkaria held by Commander Calvin Hutchinson when the USS Enterprise-D was undergoing a baryon sweep in orbit of the planet in 2369. (TNG: "Starship Mine")
