Blessed with a voice that's part roar, part purr, Seal writes love songs that are either bold and cocksure or sweetly seductive, depending on how he chooses to treat the melody. On a soul classic like Harold Melvin's “If You Don't Know Me By Now,” he's sore and anguished, but can be at his warmest and most inviting amid the cold synthetics of hi-tech romances like “Future Love Paradise.”