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frecuentemente jacobo kaufmann es invitado a dar clases en las facultades de teatro y musicología de la universidad hebrea de jerusalem.
jacobo kaufmann is frequently invited to lecture at the theatre and musicology faculties at the hebrew university in jerusalem.
christian lehmann, nacido en 1966, estudió, además de canto, musicología, biología y filología alemana.
christian lehmann was born in 1966 and studied musicology, biology, german language and literature, as well as vocal arts.