From Mahler’s Third Symphony:

         “For the vocal solo, we heard the experienced Carla López-Speziale. This mezzosoprano, with poise and exemplary use of skills, rendered a just emission at all times. More than only technique, she expressed Friedrich Nietzsche’s texts from Also sprach Zarathustra in the most spiritual possible way. Tears from some people in the chorus testify the manner in which López-Speziale interpreted the text, and may it be said that a big part of the success of these concerts was based on the brief, but magnificent vocal participation of the soloist.”

Jorge Arturo Alcázar, Revista Pro-Ópera Septiembre-Octubre 2013