Tango innovator Astor Piazzolla. Since the early 60s, Piazzolla has been leading groups that play an updated tango that connects this Argentinian form with the musical innovations from Europe and America, both classical and contemporary. The adjustments have earned him the enmity of Argentinians, and for most of the 70s he lived in France where he wrote film scores. Piazzolla is a classically trained composer who wrote symphonies and studied with Nadia Boulanger, the renown French instructor of composition.