William Kossler performs solo concerts that include 3 instruments:  the guitar, lute, and vihuela.  For information about these performances, see the link for Solo Concerts.

         Instruments:
          Guitar:  Oribe Calidad Suprema (1976)
          Renaissance Lute:   Lawrence Brown 10 Course (1978)
          Vihulea: Patrick Hopmans (2001)

     Mr Kossler also performs with two of his sons as the Kossler Guitar Trio.  For information about these concerts, see the link for Trio Concerts.
     Instruments:  In their trio performances the Kosslers play guitars built by Rafael Granados of Paracho, Mexico.