HELLOWEEN Release ‘Keeper Of The Seven Keys: Part 1’ May 1987 German power metal group Helloween issued sophomore album Keeper Of The Seven Keys: Part 1 in May 1987. The outing was cut between November 1986-January 1987 at Horus Sound Studio in Hanover, Germany. Tommy Newton produced and engineered, with Tommy Hansen co-producing, mixing, and […]