Previously, I’ve mentioned jazz pianist, teacher and composer Hall Overton, here and here.  I’ve just come across non-released recordings of free-jazz workshops organized and conducted by pioneer classical composer Edgar Varese in New York in 1957, in which Overton plays piano (and a guy named Mingus plays bass).   Varese’s influence continues:  a few years ago a concert of some of his music along with contemporary and club-based electronica completely pre-sold-out the 2380-seat capacity of Liverpool’s Royal Philharmonic Hall.