Jason Mraz · from We Sing. We Dance. We Steal Things., 2008
The sunny, reggae-tinged singalong in the key of G — the whole song rides the I–V–vi–IV loop of G, D, Em and C, all easy open shapes. Played with no capo, so guitar, piano and bass all use the exact same chords. Every diagram below is sourced live from the chord library.
Open I'm Yours on the interactive simple bass, hear every chord, and loop the progression.
Play I'm Yours in the Studio →G major. The whole song loops the classic I–V–vi–IV — G (I), D (V), Em (vi) and C (IV). There is no capo, so guitar, piano and bass all play these same chords at the same pitch.
The simplest line follows the root of each chord — G, D, E, C — around the same I–V–vi–IV loop the whole song repeats. With no capo these are the true pitches, identical to what the guitar and piano outline.