FACING ONE of the larger follow-that-debut-album problems, Seal is toiling away in Los Angeles, potential stress considerably assuaged by the collaborative presence of Wendy & Lisa. The former Prince protegées buddied up with him when adding back-up vocals to the Seal album track, Whirlpool, and appeared with him at his Hammersmith Odeon AIDS benefit earlier this year. Now they’re writing some of the new material with him. Despite all the plaudits and prizes for Trevor Horn’s production last time, Seal is understood to be working with several different producers as he proceeds, in relatively leisured fashion, towards release next autumn.