What makes Suspiria by Goblin notable?

The 'Suspiria' soundtrack is renowned for its innovative use of synthesizers and its ability to evoke terror, significantly influencing the horror genre's auditory landscape. The album has been critically acclaimed, often cited as one of the best film soundtracks ever, and it has garnered a cult following that has led to various reissues and reinterpretations over the years. Upon the release of 'Suspiria' in April 1977, Goblin was still establishing their identity within the progressive rock scene. This soundtrack followed their earlier collaboration with director Dario Argento on 'Profondo Rosso', marking a pivotal moment as they transitioned into film scoring, which would define much of their legacy.