[3] At a later time Barreiro received post-graduate classes from Maestro Andrés Segovia at Santiago de Compostela, Spain.
Elías Barreiro performed extensively in Cuba and abroad as a guitar recitalist and soloist, with orchestra and chamber ensembles.
[4] He gave his first public recital at Lyceum Society of Ciego de Avila, Camagüey, Cuba,[5] and his first concert in the US at Tulane University (Dixon Hall Auditorium) in December 1966.
Several of his former students perform regularly in concerts and hold faculty positions at Universities and Schools throughout the United States.
[1] Barreiro has participated as a member of juries at numerous national and international competitions, and also edited and arranged scores for over forty books on guitar music.