"Operation" was BIRTH CONTROL's 2nd album and continued with their pattented hard-rock acid based style not unlike that of DEEP PURPLE. Musically, BIRTH CONTROL blend heavy guitar with heavy organ twirls, not unlike early SPOOKY TOOTH in many ways as well. Band lineup included Bernd "Nossi" Noske (drums, vocals) Bernd Koschmidder (bass) Bruno Frenzel (guitar, vocals) and Wolfgang Neuser (keyboards). Songs are genereally pretty heavy with songs like the harder edged anti-Vietnam war song "The Work is done". The second track "Just Beofre The Sun Will Rise" and the last track "Let Us Do It Now" are actually quite symphonic and show why BIRTH CONTROL were leaning in a more progressive vein than others at the time. A great album for sure and one of those albums with nice deep organ and some thundering rhythm. - Review by loserboy (ProgArchvies)