Petri’s long term gig with Nightwish’s Imaginaerum movie sound track is about to end soon, and the 7.1 stems have already been uploaded to Canada for a final sound mix.

He opened up his bag of tricks in a recent blog article, posted onto his blog (find it via this link: http://bit.ly/imagnrm), and even goes into a super-detailed zoom mode when decribing his process of molding the material into an appropriate form, turning metal into moody and ominous ambiences. Or, transforming a bass player into a demon monk.

An interesting read, even for people with a slightly lower level music technology knowledge. Prepare for a thorough dissecting session with multiple audio (and video) examples.