Seal is an anomaly. His first effort to date has been his best. The song "Crazy" saturated the airwaves of FM play in the early 90's, for good reason. It's still infectious pop and carries a good message to boot.
With that said, Seal's "Seal" runs the risk of becoming dated and a difficult sound to transcend time. Though, his subsequent efforts have ensured that he was relegated to one-hit wonder, "Seal" remains the one CD of his to buy if you must become a owner of the "Seal" sound.
In attempts to portray his music, I would have to say part Vegas lounge lizard, disco-pop, tossed with New Age awakening lyrics, and some ambient synth thrown in there. He indeed has talent, but not the talent of say a Prince. The real draw here still remains the song, "Crazy," and its lyrical message, "Yeah, we're never going to survive unless we get a little crazy."
Here, here preacher man. Let's get the martini's rolling in this here lounge, let the disco ball spin, new age guru away. Sealed in time.