Ludwig van Beethoven's opus number 70 is a set of two Piano Trios.

Written for piano, violin, and cello, the works were published in 1808. The first, in D major, known as the Ghost, is one of his best known works in the genre (rivalled only by the Archduke Trio).

Opus 70 no 1 - Piano Trio (Klaviertrio) No. 5 in D major "Ghost"

Opus 70 no 2 - Piano Trio (Klaviertrio) No. 6 in E flat major