For once, here’s a band for which the word 'supergroup' is completely apposite. Swiss vocalist Andreas Schaerer, German pianist Michael Wollny, French accordionist Vincent Peirani and his saxophonist compatriot Emile Parisien are four of the brightest and most charismatic stars in European jazz, and they have now formed themselves into a quartet. Their new live recording “Out of Land” demonstrates why they are at the very pinnacle of jazz musicians of their generation.