An Australian music teacher was on Friday sentenced to 25 years and seven months of imprisonment for sexually abusing his girl students aged 10-17 for over 12 years.

The 51-year-old man, Colin Harold Doo, pleaded guilty to 39 charges including 10 of procuring a child for the purposes of producing pornography, six counts of rape and 12 of committing an indecent act in the presence of a child under 16.