Bands such as Fates Warning , Queensrÿche and Dream Theater took elements of these progressive rock groups -- primarily the instrumentation and compositional structure of songs -- and merged them with heavy metal styles associated with early ORGANIZATION@1 , PERSON@1 and Iron Maiden .

Bands such as Queensrÿche and Dream Theater took certain things about progressive rock groups and mixed them with heavy metal styles likes those of bands such as early ORGANIZATION@1 and PERSON@1 .
