In 1962, composer Rafael Suárez and Domingo Mendoza worked together to form the singing group Quinteto Contrapunto (Counterpoint Quintet).

Muñoz joined fellow mezzo-soprano Aida Navarro, tenor Jesús Sevillano, Suárez singing baritone (in addition to composer, director) and Mendoza providing the bass voice.

In 2007 Morella Muñoz' musical work was declared cultural heritage of the Libertador Municipality of Caracas.

The Foundation organizes and sponsors events to keep Morella's legacy alive and also support young talents by providing a platform on which they can learn.

In 1982 an anthological edition of 12 discs was released, accompanied by the testimonial book The Invention of Singing by Carlos González Vegas.