What are some great progressive rock bands?
RUSH, Yes, Genesis, the Alan Parsons Project, Pink Floyd, King Crimson, Emerson Lake and Palmer, Jethro Tull
<START_INST>What are some great progressive rock bands?<END_INST><START_CTX><END_CTX><START_A>RUSH, Yes, Genesis, the Alan Parsons Project, Pink Floyd, King Crimson, Emerson Lake and Palmer, Jethro Tull<END_A>