Experimental percussionist Mike Neumeyer dropped a new EP. It’s four tracks that each add a new layer to Neumeyer’s process as he plays; the first track is just marimba, the second adds vibraphone, the third adds chimes, and finally in the fourth he sings. It may be a gentle listen but there’s profound intention and patience behind each artistic decision. Mike Neumeyer improvises against himself with “Layer by Layer.”