Hard Rock

Mouse released their one and only album "Lady Killer" in 1973, which is now considered something of a prog rock classic. 

"Led by Ray Russell, Mouse presents an album of progressive rock that is sought-after for a good number of reasons. His soaring acid guitar reigns supreme... (and) given that all other tracks are ... at best marvellous, it's easy to see why progressive collectors consider this album a must." - Tapestry of Delights

"Andromeda's sole album [from 1969] was heavy guitar psychedelia that leaned far more toward the lurking hard rock, progressive, and occasionally metal movements than it did toward more pop- and song-oriented psych."