Golf for Women has published a snippet of a book called Tour Tempo: Golf's Last Secret Finally Revealed. The snippet outlines the 3:1 ratio that most tour players seem to have in their swings. Three beats to reach the top of the backswing, one beat coming down to impact.
You too can attempt to achieve "Tour Tempo" by counting in your head. Most music is in 4/4 time, so pick a song with a rhythm you like. Swing back to the top on the first three beats while humming the song or singing it (even if you do so quietly or in your head), and swing down and make contact with the ball on the last beat. If you have decent rhythm, simply saying "1 2 3 4" rhythmically will be enough.
Give the "Tour Tempo" a try the next time you golf. It's not much of a swing thought, but then again, that's the point.