Queen Extravaganza - Kiefer Matthias Presents: "Another One Bites The Dust" (Bass) -Queen

Queen Extravaganza - Kiefer Matthias Presents: "Killer Queen" (Bass) -Queen

Queen Extravaganza - Kiefer Matthias Presents: "Seven Seas Of Rhye" -Queen

Jamslam @ Dirmsteiner Hexennacht: Bass-Solo Matty Matthias Kiefer + Drum-Solo Raphael Autz

Queen Extravaganza - Kiefer Matthias Presents: "One Vision" (Drums) -Queen

Beyond (A System of Pasing) zu A.E.I.O.U. von Anselm Kiefer (Komponist: Matthias Pintscher)

Building My First Effect Pedal Under 2 minutes - Fuzz