New tracks tonight on Postclassic Radio by microtonal guitarist Neil Haverstick (playing the blues on 19-tone guitar), Petr Kotik, Jerome Kitzke, William Duckworth, Korean composer Hyo-shin Na, and Bernadette Speach. The last’s new cut is Parallel Windows – unframed (1996), one of her two pieces for piano and orchestra. I’ll put the other one up soon (Within) for comparison.