Singer/songwriter David Lee Murphy, who’s probably best known for his 1995 No. 1 hit, “Dust on the Bottle,” has been cranking out No. 1 tunes as a songwriter for more than 20 years, including Jason Aldean’s “Big Green Tractor,” Blake Shelton’s “The More I Drink,” Kenny Chesney’s “Til It’s Gone” and more. In fact, David…