Quincy Jones ' sprawling Bel Air estate is back on the market ... and this time it's seeking $35 million, TMZ has learned. The legendary music producer's gigantic mansion is nearly 25,000 square feet with 5 bedrooms ... and it's decked out with an infinity pool, tennis court, indoor garden, wine bar, game lounge, home gym, and a screening room. The estate is tucked away in Bel Air at the end of a private cul-de-sac ... offering sweeping views of the San Gabriel Mountains, Los Angeles, and the