My Little Welsh Home by Bryn Terfel is in Cm at 70 beats per minute and runs 2:03 across 27 bars. It uses 16 chords — Bb, F, Gm, Dm, Eb, Cm6, F7, Ebmaj7, and a few more. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? My Little Welsh Home guitar melody tab.