If you ever needed proof of just how varied the heavy music scene is in Northern Ireland you need only to check out last Saturday night’s Distortion Project gig lineup. Set in the Pavilion bar, it featured groove rock, punk rock, glam/horror metal and modern metal. Impressive, eh? First up were aforementioned groove rockers Cavehill (below), who are forgiven for their slightly too loud snare mike and late bass issues when we discover that due to the rugby match being shown, only the headliners had time to soundcheck. Rock and roll, man… their catchy brand of groove-heavy bluesy rock is…