It was Cage's first work written on request from professional performers.
Walker left school at age 10, and by 15, he was a professional performer on the blues circuit.
The men had a variety of professions; some were professional performers.
Even so, most are not designed to train professional performers.
Music, food and arts festivals have all booked professional performers.
The week sees performers, both professional and young, play in front of thousands.
A high proportion of these teachers are also professional performers.
Many pupils have gone on to higher education and become professional performers or work in the performing arts industry.
Today, it is made up mainly of high school band directors, music teachers and professional performers.
He has been a professional performer in Canada for more than thirty years.