Spectrum had toured other Australian rock festivals, including, Wallacia (January 1971), Myponga (February), Sunbury (January 1972, January 1973), Mulwala (April 1972), and Rosebud. Their national profile was limited by a lack of radio airplay in other capitals and, other than festivals, they rarely toured outside Victoria. Ian McFarlane opined that the group were "one of the first underground bands of the early 1970s to gain mainstream acceptance. brand of progressive rock was often built around long, complex musical passages, very much in the vein of UK bands... Yet the band did embrace a commercial aesthetic at times."