First released in 1970, it is difficult to believe that this band was a trio, given the sound they made. This album is a fabulous slice of progressive rock, with a hefty splash of hard rock for good measure! The mood of this album is at times heavy - at others, quite subtle. The stand out track is a favourite of Ritchie Blackmore's, 'Black Sheep Of The Family' - when you here this, you can see where some of the Rainbow influences came from. All in all, a great album and a classic of its era. Now check out Quatermass II.