A duet for regular guitar and terz guitar by J.K. Metz (1806-1856).  Tamara plays an original French instrument from around 1820.  Neil Plays a seven-string guitar built by Scot Tremblay (http://scottremblayguitars.com/) modeled after an 1840 French instrument by Aubrey-Marie.

Here is a live recording of the Rondo from the Serenade pour Guitarre, Flute et Cor, Op. 4 by Christian Dickhut (?-1829) performed by Neil Caulkins (guitar), Dr. Hal Ott (flute), and Dr. Jeff Snedeker (horn).

Here is a live recording of the Adagio from the Serenade pour Guitarre, Flute et Cor, Op. 4 by Christian Dickhut (?-1829) performed by Neil Caulkins (guitar), Dr. Hal Ott (flute), and Dr. Jeff Snedeker (horn).

Here is a live recording performed by Neil Caulkins on guitar and Dr. Hal Ott on flute.