Third Brandenburg Concerto
From Memory Alpha, the free Star Trek reference
The Third Brandenburg Concerto in G Major was a piece of classical music composed by Johann Sebastian Bach.
In 2368 Data listened to Bach's Third Brandenburg Concerto in order to analyze its aesthetics. (TNG: "A Matter of Time")
Captain Jean-Luc Picard and Nella Daren played the first movement (Allegro) of the Third Brandenburg Concerto together in 2369, Picard playing on his Ressikan flute and Daren accompanying him on her Mataline II piano. (TNG: "Lessons")
