Related Information for Intervals 1) Intervals are a Canadian/American progressive metal band. Intervals originally started as a creative outlet for guitarist Aaron Marshall in 2011 after the demise of his previous band; he wrote, recorded and programmed all the instruments for the debut EP "The Space Between".After the release of "The Space Between", Aaron recruited 3 more members and made Intervals into an instrumental band. The band toured extensively and recorded a follow up EP, ".. read more