Philly-born R&B singer-songwriter-undertaker Solomon Burke has been on a revival roll since 2002’s Don’t Give Up On Me. Nothing’s Impossible marks his debut with late Memphis producer Willie Mitchell and the latter’s final album — which would be just promo copy if the result wasn’t so worthy of both men’s legacies. Mitchell’s arrangements recall his best work with Al Green, all glowing strings, supple horns and understated guitar licks. Burke, working a lower register than Green’s, pushes his voice, here getting his hot gospel on, there teasing the words “love,” “dream” and “screeeeeam” into microdramas. It’s the beginning, and end, of a great partnership.