Intervals: Aaron Marshall "Mata Hari" Intro Riff Lesson | Guitar World

Last month, Toronto's Intervals released In Time, their latest EP full of their unique brand of instrumental prog-metal.

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Josh Hart is a former web producer and staff writer for Guitar World and Guitar Aficionado magazines (2010–2012). He has since pursued writing fiction under various pseudonyms while exploring the technical underpinnings of journalism, now serving as a senior software engineer for The Seattle Times.

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