Many Iranians disapprove of women raising their voices, a problem when it comes to rehearsals.
Iran's musical restrictions have eased over the past decade and pop music has become increasingly common in some parts of society. But the idea of female artists singing or dancing in front of male audiences is still completely taboo.
"We have been told that music is haram (not religiously acceptable) ... I used to be so depressed, but now I have high morale," said 35-year old Masoumeh Salim Sediqi.