Peter Markovic
Peter MarkovicCEO & Team Leader
Peter is the CEO and founding member of He has played guitar since his early teens and loves to write. He is building a team of expert guitar players who are able to offer guitar players the benefit of their years of playing guitar and expert knowledge for the instrument.
Jerry Mathis
Jerry MathisTeam Writer
Jerry is an advanced guitar player who began his playing journey at the age of 11. His passion for the guitar has never waned. His ability to not only play the guitar but convey his love and knowledge about the instrument with others is what he enjoys doing. He has a deep passion for music and guitar styles from fingerstyle to classic rock. Guitar Advice is very proud to have him as part of the team.
David Slavlovic
David SlavlovicTeam Writer
Playing guitar since 1998, David grew up listening to classic rock and heavy metal. With age, his tastes and interests in music grew. His playlists can include anything from a wide array of artists, like Black Sabbath, Vangelis, Pat Metheny, High on Fire, Joe Pass, and Stevie Ray Vaughan, just to name a few. Guitar has always been his hobby, not work. He now spends most of his time playing and writing about his passion, guitars.
Ivan Avicolli
Ivan AvicolliTeam member
Ivan Avicolli, session musician, teacher and founder/director of Roxy Music (music school) in Rome, Italy. Music is Ivan’s passion and profession. Ivan has played in almost a thousand concerts from 2000 to 2020, all around Europe. Ivan has produced two albums, “Looking Higher” (2016) and “Bee Gees on my guitar” (2018). He has collaborated with artists Blue Weaver, Dennis Bryon, Vince Melouney etc.
Altin Gjoni
Altin GjoniTeam Writer
Altin Gjoni is a professional session guitarist that blends his love for playing the instrument with a career in marketing. He is in his element when he is writing and pursuing his love for guitar and recording. He is now ramping up his time in the studio recording multiple genres from pop to metal and his favorite genre, progressive rock. Altin continues to adapt to today’s digital revolution. He is very proud to offer his services to musicians and studios worldwide.