Last year label mates TRIVIUM and DREAM THEATER toured North America together and whilst on the road, both bands popped into our US office. Roadrunner US sat with Matt Heafy and John Petrucci for an indepth conversation about guitars, which included playing technique, exercises and much more. It’s like your ultimate guitar masterclass! The feature is broken down into four parts and you can see the first part over on MusicRadar by clicking this link. Check it out!