sentences:  In addition to his success as a notable educator, he went on to become a popular concert solo baritone and teacher of voice, earning particular critical acclaim for his Baroque and Early Music performances.Hissey has performed as a vocal concert soloist throughout Australia, in Europe and the United States and as a regular guest artist for many of Sydney’s metropolitan and regional choral and orchestral organisations.Whilst Hissey has specialised in the performance of music from the Sacred and Oratorio literature, he is also deeply involved in fostering the talent of young singers with an established reputation as a fine teacher of voice and choral director.