Which encyclopedia covers all popular music?

• A. Encyclopedia of Popular Music
• B. The Garland Encyclopedia of World Music
• C. The New Grove Dictionary of Music and Musicians
• D. Encyclopedia of Jazz

Answer: (A)

This question tests understanding of which reference works are specifically focused on popular music. The encyclopedia dedicated to popular music is designed to cover the broad landscape of pop genres, artists, and movements across eras—from early popular songs to contemporary pop, rock, hip‑hop, electronic, and beyond. Its scope is intentionally centered on popular music in all its forms, making it the most comprehensive single reference for this field.

The other options each have a different emphasis: a world-music encyclopedia surveys music from many cultures around the globe, not restricted to popular music; a general music encyclopedia covers a wide range of styles, including classical and some popular music but not focused exclusively on it; and an encyclopedia of jazz centers on jazz specifically. Since the question asks for a source that covers all popular music, the encyclopedia of popular music is the best fit.