What is it about Jazz and Jazz musicians that is so exceptionally cool and magnetic? There is rhythm, melody, lyric, narrative, development, co-operation and, of course, talent. Talent delivered with apparent detachment – nonchalance and the package they deliver can, striding or stomping, send one into spasms of St Vitus’ dance or slow melancholic shuffles against a muted horn that mark time till the world ends or your lover leaves you. It makes a moment poignant, gives life a soundtrack and then the lid of the piano comes down and all that glory is just another night’s work. Unless, you’re lucky enough to get an invite to the real party and to stay, “After Hours”.