Let It Grow by John Powell is in C at 65 beats per minute and runs 4:04 across 118 bars. It uses 20 chords — Gsus, C, F, G, E7, Am, Dm, A, 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? Let It Grow guitar melody tab.