Therefore I Am by Billie Eilish is played in the key of Em at a beginner difficulty level, originally released in the 2020s. It uses 2 chords — Em D — arranged in the i-bVII progression.
About the i-bVII progression
This song is built on the i-bVII 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 Em
E minor is arguably the easiest key on guitar. Em, G, C, D, Am, and Bm are its main chords, and everything but Bm sits open. Great for melancholy folk, moody rock, and beginner practice.
Related songs
More songs in the key of Em
More songs using the i-bVII progression
Learn to play Therefore I Am by Billie Eilish on guitar. It sits in the key of Em and uses the i-bVII progression with the chords Em D.