"The Sweetest Music This Side of Heaven" was the logo of Guy Lombardo & His Royal Canadians, who by 1930 had established themselves as America's top dance band. Unfairly lumped in with unswinging "Mickey Mouse" bands of the era, the music of Lombardo's outfit was actually top-notch, and they were constantly cited by Louis Armstrong as his favorite band for their purity of intonation. A cache of early sides for Gennett reveals that the band was capable of playing "hot" any time they wanted to, but sweet music and singing novelties featuring brother Carmen is what the public wan...