Mansun - Six
Cardiacs - Sing To God (probably my favourite album ever)
Soft Machine - Third

there's more. but I'll sportingly declare at 3. oh, except I'm pre-emptively obliged to state that 'yanqui uxo' is GYBE's masterpiece, so there. and yes, 'david comes to life' is really good

please try to select albums that manage to sustain the brilliance for all 70+