“Orchestras rarely take on microtonal music, except when certain members of the string and brass sections inadvertently play music intended for performance in 12-tone equal temperament with less than accurate intonation. This alone makes Boston Modern Orchestra Project’s perfectly in-tune performance of Mathew Rosenblum’s Sharpshooter, which is crafted from an idiosyncratic 19-pitch scale with equally beating minor thirds, a thing of wonder. But the fact that the music shimmers and grooves and that these otherworldly intervals are almost hummable make it an extremely satisfying, if slightly mind-altering, listening experience. For added enjoyment, try singing along with it!”