Final answer:
Progressive rock performers from the 1970s often modified their style by embracing a more commercial sound in the 1980s, incorporating tighter song structures and hooks to appeal to a broader audience.
Step-by-step explanation:
The progressive rock performers from the 1970s predominantly modified their style in the 1980s by embracing a more commercial sound. This shift was in part due to changes in cultural tastes, the music industry's push for more radio-friendly formats, and the advent of music television like MTV, which required a more visual and accessible approach.
Performers who once indulged in elaborate, often lengthy and complex compositions found themselves scaling back, focusing on tighter song structures, and incorporating new wave, pop, and electronic elements to appeal to a broader audience. Some bands did remain true to their progressive roots, but success in the 1980s often required adaptability and a willingness to occasionally step into the mainstream.