Greetje Bijma, Mary Oliver and Nora Mulder form a seemingly impossible ensemble, whose concerts are marvelous adventures. We can hear the clean, lightly classical sounds, coming from the grand piano, grating against the viola’s screeching eruptions and wonderful jazz ballads segueing into dark throat singing. Piano strings growl, the viola snarls and vocals are vibrating in the highest or the lowest register; all of this with an added sense of drama.This highly original trio, which made its debu…