S&P Global Ratings revised the outlook to positive from stable and affirmed its 'A+' long-term rating on the Convention Center Authority of the Metropolitan Government of Nashville and Davidson County , Tennessee's series 2010A-2 tourism tax revenue bonds (the 2010A bonds). The outlook revision reflects our view of the continued growth and diversification of Nashville and Davidson County ?s (Metro) economy, as well as increases in pledged tourism-related tax revenue with the maintenance of exceptionally strong coverage of almost 16x of pledged revenue, although this will likely fall in the near term due to additional debt plans. A senior lien on a variety of tourism-related taxes secures the bonds, including: All sales tax generated within the Music City Center (MCC)