Rodas studied at the National Conservatory in Quito, took private composition lessons with Gerardo Guevara, and also graduated in Law at the Universidad Central del Ecuador.
While in París he also attended courses given in several institutions by Michèle Reverdy, Pierre Boulez, Gerard Grisey, Guy Reibel and Iannis Xenakis.
[1] The Banco Central del Ecuador issued a two-disk recording of Rodas works in 1988 as volume one of the series Compositores ecuatorianos contemporáneos.
A number of his works from this period, such as his aleatoric orchestral piece Fibris (1986), were published in Opus, a music magazine that Rodas co-edited.
Patterns: personal vision of his sources (Andino I-Andino IV, Laúdico); sound-mass polyphony (Entropía, Arcaica); aleatorism (Fibris, Ramificaciones Temporales); formal research (Obsesiva, La, Melodías de Cámara); and unavoidably the meeting point of patterns ("24.5 Preludios for piano", the "Atonal Fugues" and the opera "El Árbol de los Pájaros").