Brit singer-songwriter Badly Drawn Boy (a.k.a. Damon Gough), who hit his artistic peak with 2002's elegantly tuneful ''About a Boy'' soundtrack begins his fourth album, One Plus One Is One, with its promising title tune, a dead-on evocation of Imagine-era John Lennon. From there, however, the CD becomes a snoozy muddle, dominated by underwritten, over-orchestrated ballads (think children's choirs and ''Aqualung''-style flutes).

