Mauricio Sotelo’s Muros de dolor...I (2005) speaks of the pain and sorrow of the soul. The strong and expressive character is achieved via a precisely calculated succession of “micro-intervals” and an expanded palette of “micro-qualities” of the tone. Mauricio Sotelo wrote Muros de dolor…I for saxophonist Marcus Weiss, who supported him significantly in the composition of the work with his knowled…