She studied music with her father, the Presbyterian minister Vicente Diestro Camejo, and continued in a private conservatory.
She became the choir director of her father's church, which taught her a great deal about harmony which came in useful later.
Aida learnt more from the musician and composer Enrique González Mántici [de], and his guidance played a decisive role in her future career.
Years later she said: "Mantici gave me the confidence to confront the prejudices which female artistes encountered in those days.
"[1] Diestro's first professional engagements was as a pianist on the radio, accompanying artists such as César Portillo de la Luz and Tania Castellanos.