Thinking Out Loud by Ed Sheeran is played in the key of D at a intermediate difficulty level, originally released in the 2010s. It uses 4 chords — D F#m G A — arranged in the I-iii-IV-V progression.
About the I-iii-IV-V progression
This song is built on the I-iii-IV-V progression. Follow the chord order in the diagrams above, and use the transpose controls if the key doesn't suit your voice.
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
Learn to play Thinking Out Loud by Ed Sheeran on guitar. It sits in the key of D and uses the I-iii-IV-V progression with the chords D F#m G A.