Supercodes has 1 Hell Within concert.

HELL WITHIN was an aggressive five piece machine that rose from the depths of Lowell, MA. Making their mark locally under the name "TWYTCH". The band’s first self titled LP, "TWYTCH", released in 2001, quickly gained them regional recognition. Their second EP "Hatred" released in 2003 proved to be nothing short of a mixture of styles that brought them to where they are today. The EP shows a mature mix of exactly where their perfected sound has taken them, a heavy, hard hitting, driving force of powerful aggression.