Complex sentence: This time the stay would last nine years since, aside from his performances Kraus was offered the position as professor of vocal technique in the Superior School of Caracas, and also in the Escuela de Música Prudencio Esaá.
Split into simpler sentences: This time the stay would last nine years since, aside from his performances Kraus was offered the position as professor of vocal technique in the Superior School of Music. Escuela Superior de Música de Caracas, and also in the Escuela de Música Prudencio Esaá.