Fretless bassist Percy Jones and drummer Frank Katz form a rhythm section so solid and inventive, it's bound to make your head spin. As a member of seminal Fusion outfit Brand X, Jones used to tear it up with Phil Collins, but while Collins is earning Grammys with schmaltzy ballads and Disney theme songs, these chopmeisters have stuck to their (quite blazing) guns. Marc Wagnon adds his jazz-mo-spheric keyboard vibes, complemented by the ripping, chromatic guitar lines of Van Manakas. Funky backbeats power the twisting melodies Tunnels travel through on their Berklee post-grad instrumental journeys. It's true their music maintains a heavy focus on virtuosity, but they're so good you'll quickly get lost in their impassioned improvisations.