Classical Ensemble
Solo: violin, cello, classical guitar, piano, voice, trumpet, flute, harp
Duo: Violin/Cello or Violin/Guitar
Trio: Violin, Viola, Cello or violin, classical guitar, cello
Quartet: violins, viola, cello
Jazz Music
Solo: guitar, piano
Duo: two guitars | guitar & violin
Trio: two guitars & stand up bass | guitar, stand up bass, violin or drums | two guitars & stand up bass, trumpet, violin or drums
Quartet: two guitars, stand up bass, violin/trumpet/drums/piano
Folk Music (bluegrass, country, folk-rock, and gypsy jazz)
Duo: guitar, mandolin (with optional voice)
Trio: guitar, mandolin, stand up bass (with optional voice or fiddle)
Quartet: guitar, mandoli, fiddle, stand up bass (with optional voice?