rave sounds from 1991

New 4 sounds to ID from a Laurent GARNIER Radio show recorded in 1991

PS13 - 1 : bizzare inc - playing with knives (climax mix) -THANXX FOR DOOLZ
PS13 - 2 : spectrum - spectral - THANXX FOR PLUTO

teh first one is such an obvious one but my brains gone blank

lol of course 1 is
bizzare inc - playing with knives (climax mix)

2 = http://www.discogs.com/release/6122

Many thanXX for DOOLZ & PLUTO

n°3 & 4 are more difficult to find than the first ones...
dark sounds...