What is the fine-grained topic of the following text: The seven-album collection features the groups’ albums spanning the period of 1972 to 1987, which includes Machine Head, Who Do We Think We Are, Burn, Stormbringer, Come Taste the Band, Perfect Strangers and The House of the Blue Light. Only return the topic.
A seven-album collection of a music group from 1972 to 1987.