Now Is The Hour by Vera Lynn is in Bb at 120 beats per minute and runs 2:06 across 43 bars. It uses 18 chords — F, Fmaj7, Bb, D7, C7, Fdim, Dm, A7, 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? Now Is The Hour guitar melody tab.