The "We Will Rock You" star's latest project features hits by Metallica, Thin Lizzy, Motorhead, Rainbow, and Rush, reported Contactmusic.
"It's an interesting discussion between a simple riff and a complex riff," May said, explaining the concept behind the three-CD Air Guitar Anthems.
"Most of us think simple is great but there are definite exceptions, like Message In A Bottle by The Police - it is the most incredibly complex thing but it sticks in the mind and it's obviously one of the greatest riffs of all time.
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