Court and Spark by Joni Mitchell is played in the key of D at a advanced difficulty level, originally released in the 1970s. It uses 3 chords — D G A — 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 D
D major is a bright, ringing key that suits acoustic strumming. D, A, G, and Bm are your main chords, and everything but Bm sits in open position. The Bm barre is the one hurdle for beginners.
Related songs
More songs in the key of D
More songs using the I-IV-V progression
Learn to play Court and Spark by Joni Mitchell on guitar. It sits in the key of D and uses the I-IV-V progression with the chords D G A.