Tar virtuoso Hossein Alizadeh performs during a duet with tombak player Hamid Qanbari (not seen in the photo) at the University of Art and Culture in the western Iranian city of Kermanshah on April 30, 2016. (ISNA/Erfan Karami)

Tar virtuoso Hossein Alizadeh performs during a duet with tombak player Hamid Qanbari (not seen in the photo) at the University of Art and Culture in the western Iranian city of Kermanshah on April 30, 2016. (ISNA/Erfan Karami)