sentences:  In 2018 he published another microtonal diagram that compares the otonal and utonal scales with the harmonic series and 12TET and also how Partch' tonality diamond is related to the harmonic series when put in a triangular array.Landman co-wrote "Nice Noise" (about prepared guitar techniques and guitar modification) with Bart Hopkin.This book was released in 2012 by Experimental Musical Instruments and came along with 60 sound fragments made with a wide range of guitar preparations.