Al’s personal desire for this music in this solo guitar context was to bring his own vision by incorporating a syncopated rhythm concept unlike its original written conception.

His friendship with Astor Piazzolla proved to be a turning point in his life. Astor encouraged him to bring to Astor’s music his own voice and expression.

Through their many conversations, Astor described his music as "diabolic", referring to the radical departure from the standard Tango music of the past. For that, Astor faced adverse reaction due to its mix of contemporary musical elements, while breaking all the rules and radically advancing this music into the future.

Like most musical innovators, Astor faced periods of intense criticism. After a lengthy period of exile, the tango purists finally accepted and heralded Astor's depth of work and he returned to Argentnia as hero.