adj. Describing classical music of broad, popular appeal
adj. Describing any of various approximations to either relativistic or quantum mechanical physics that retains elements of classical physics
Word Usage
"With musical settings that evoke Rachmaninoff by way of Debussy and sometimes inflected with J. S. Bach, she often moved beyond the realm of jazz into a semiclassical sphere, although the label semiclassical really doesn't suffice, because the music is improvised."