Limelight by Rush is played in the key of B at a intermediate difficulty level, originally released in the 1980s. It uses 3 chords — B E F# — arranged in the I-IV-V progression.
About the I-IV-V progression
The I-IV-V progression uses the three primary chords of the key — nothing else. It's the harmonic foundation of blues, folk, country, and early rock and roll. Learning to switch between these three chords fluently in every key is a fundamental milestone for beginner guitarists.
Playing in the key of B
B major is a barre-chord key — every primary chord (B, E, F#) requires a barre. Most guitarists play songs in B by capoing up and using easier open shapes from a nearby key.
Related songs
More songs in the key of B
More songs using the I-IV-V progression
Learn to play Limelight by Rush on guitar. It sits in the key of B and uses the I-IV-V progression with the chords B E F#.