Piano Trios, Op. 1 (Beethoven)

Ludwig van Beethoven's Opus 1 is a set of three piano trios (written for piano, violin, and cello), first performed in 1795 in the house of Prince Lichnowsky, to whom they are dedicated. The trios were published in 1795.

Despite the Op. 1 designation, these trios were not Beethoven's first published compositions; this distinction belongs rather to his Dressler Variations for keyboard (WoO 63). Clearly he recognized the Op. 1 compositions as the earliest ones he had produced that were substantial enough (and marketable enough) to fill out a first major publication to introduce his style of writing to the musical public.