There are a handful of independent record labels doing a better job of showcasing the cutting edge in jazz than the majors. The fearless Pi Recordings comes to mind, as does trumpeter Dave Douglas’ Greenleaf Music. But pianist-educator Kris Davis’ venture, Pyroclastic Records, must be included in the conversation of innovative, self-sufficient outlets. Pianist Kris Davis founded Pyroclastic Records and teaches at the Berklee College of Music.