By Mike Reicher and Joey Garrison, includes “… a recent report showed the city spent one out of every $10 of government funds to pay off debt last fiscal year. And this year’s budget may exceed that figure for the first time since at least 1993. … Moody’s gives Nashville the third highest credit rating available, something Briley likes to cite whenever the subject of Metro’s financial challenges arise. But that rating, Coviello said, is partly based on the city’s growing tax base — and city leaders’ ability to tap it for funds.”