Guitarist, songwriter, guitar teacher and music producer, Andy (Andrea Martongelli) belongs to the Hard Rock / Heavy Metal world since 1999, when the Metal band Arthemis starts their career.

From 1999 to nowadays Andy recorded with his band Arthemis and other bands (Ellefson, Ellefson-Soto,Power Quest, Killer Klown…), several Metal albums, constantly touring and performing at some of the greatest World Rock-Metal events, establishing himself as a Rock-Metal guitarist but also as an eclectic musician and great songwriter.

During his career as solo artist Andy shares the stage with several iconic Rock guitar players touring as opening act or jamming with musicians like Steve Vai, Marty Friedman, David Ellefson, Jeff Scott Soto, Guthrie Govan, Paul Gilbert, Michael Angelo Batio (Manowar), Kiko Loureiro (Megadeth / Angra) , Andy Timmons, Rowan Robertson, Frank Gambale, Gus G (Firewind, ex-Ozzy Osbourne) , Reb Beach (Whitesnake, Winger) , George Lynch, Marky Ramone (Ramones), Ola Englund, Vinnie Moore, Andy James …& many more) showing great stage presence, creativity and showmanship. His creative process and technical approach on Guitar keeps changing and evolving through the years making his style, guitar riffs and solos, a real trademark for many fans & Guitarists around the world.