The Velvet Note presents its eight series of Legends of Jazz, starting off with Maiden Voyage. As with the entire monthly Legends of Jazz series, The Justin Varnes Quartet will guide guests–in engaging, narrative form– through the life of the great American jazz artist Herbie Hancock.    It’s like taking in a concert and taking a jazz history class at the same time, and…, oh… they’ll also play their behinds off!