A great opportunity to savour a firing-on-all cylinders concert by what was always the best group that emerged from the wave of jazz informed British pop of the 1980s. More musically adventurous and politically charged than the likes of Blue Rondo A La Turk, Rent Party and Animal Night Life, Working Week were in fact hugely important for the space they created for strong, soulful melody, thoughtprovoking lyrics, latin and avantgarde sensibilities, particularly Art Ensemble of Chicago, to coalesce without any semblance of modishness or contrivance. Juliet Roberts is well cast in the role of lead singer, having the requisite power and attention to detail for the sophisticated arrangements but the work of the horn and rhythm sections is also outstanding. Above average songs embellished with absorbing unison lines and improvisations are more or less a thing of the past, but this is an object lesson in how to do it.