I'm Yours by Jason Mraz is four chords and a C harmonica. No capo, standard tuning. The tutorial builds the guitar side first: C, G, Am and F with the thumb-down-up-down-up strumming pattern, then the progression played through, then singing the chord names while you play them so the order locks in.
The harmonica part is the chorus melody, blows and draws on holes 3, 4 and 5. Then it is the Air Guitar drill: you mime the strumming pattern while playing the melody, so your hands learn the rhythm before the strings are allowed back in. Only then do both parts go together in the full play-along.
The practice worksheet puts the tabs and the guitar chords on one page, with a 3-day plan to get you playing. Download it below, print it, and play along with the video.
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