This rare Philips CD set features 9 discs of Haydn's Piano Trios, performed by an unknown artist. The music is beautifully executed and offers a wonderful listening experience for any lover of classical music. The set includes all 43 trios with piano, making it a valuable addition to any music collection.

The format of this set is audio CD, and it falls under the categories of Music and CDs. The record label is Philips, and the instrument used is the piano. The style of music is trio, and the genre is classical. Overall, this is an exceptional CD set that any classical music enthusiast would appreciate.