The Gambler by Kenny Rogers is in Ab at 176 beats per minute and runs 3:05 across 101 bars. It uses 7 chords — Eb, Ab, Bb, E, A, B, B9. 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? The Gambler guitar melody tab.