He died in 1999 , aged 78 .
In 1983 Harper took up the position of Head of Jazz Studies at Wollongong University 's School of Creative Arts , a position he held until 1990 .
Harper died in 1999 , aged 78 .
In 1983 Harper took up the position of Head of Jazz Studies at Wollongong University 's School of Creative Arts , a position he held until 1990 .