Two Guitars - Guido Aigner and Christian Kelnberger
- Guido Aigner, born in 1952
- musical studies with Prof. Dieter Kirsch, Wuerzburg, Germany
- Teacher at the International guitar master class "Hermann Hauser" in Reisbach/Vils, Germany
- Numerous concerts in and around Germany as a soloist and chamber musician
- Various recordings for radio programs
- 2004 recording of music for two guitars on CD together with Christian Kelnberger