Clive Davis's Arista label enters the burgeoning show music compilation sweepstakes with Ultimate Broadway, a 40-song, double-disc grab bag culled from the last six decades of magical musical memories. Rather than pursue a purely legitimate theatrical pedigree, Ultimate Broadway mixes cast album classics like Alfred Drake's stirring "Oklahoma!," Judy Holliday's oh-so-sad "The Party's Over" from Bells Are Ringing, and Carol Channing's shimmering "Hello, Dolly!" with Judy Collins's pop single hit "Send in the Clowns" from A Little Night Musicand "I Dreamed a Dream" from Les Misérables as sung by Aretha Franklin at President Clinton's inauguration gala. Recent Great White Way hits are represented by the Rent anthem, "Seasons of Love," and "As If We Never Said Goodbye" from Andrew Lloyd Webber's Sunset Boulevard. This collection might be just what you need to start on the path to show-tune heaven.