Dying Inside by Gary Barlow is in Ab at 76 beats per minute and runs 3:47 across 66 bars. It uses 7 chords — Eb, Gm, Cm, Fm, Ab, Bb, Ab69. 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? Dying Inside guitar melody tab.