This male singer is supposed to lead the congregation in its psalmody of the Torah, he was probably ``giving the tone'' by singing first the verse and his voice ought to be impressive in its beauty and eloquence.
However it is interesting to note that this tradition of a cantor has gone underground during several centuries following the diaspora. It only re-emerged in the late 19th. century in Germany and organized (or re-organized) in music schools and formal training.
I believe this is a (the?) reason for Dmitri Shostakovich choosing for his 13th. Symphony Babi Yar bass vocal solo and male choir.
Only Jewish males can have the role in Traditional Jewish law, other non-orthodox movements do allow women, over the age of 12 to be a ``hazzan''.Reform Judaism, Conservative Judaism, and Reconstructionist Judaism invest both men and women cantors as full clergy.
In the present day, a ``hazzan''s are more likely to have musical degrees, formal training in both music and religious matters. Yet in the more orthodox synagogues the prominent position of the ``hazzan'' seems to have gradually diminished.
Mehmet Okonsar 2011-03-14