The second upload presents at first a large Duo - in the tradition of Michel Corrette's Duos, but larger, much more difficult to play, and as music-piece spectacular.
The Trio is a little bit more simple.
The following upload starts with the very interesting pieces from Lasceux's opus.
For further informations about Guillaume Lasceux and his compendium, please, have a look to my essay Guillaume Lasceux and his Compendium "Essay théorique et pratique" on THE BARDE.