The incident occurred yesterday in Matan Kallaan village of Chakwal district in Punjab province.
The girl, Rehana Bibi, was alone at her home and was listening to music when her uncle came and asked to lower the volume, a local police official said.
The teenager refused to do so, leading an argument between the two.
The man in a fit of anger whipped out a gun and shot her dead.
The deceased father registered a case against the killer who fled the village after the incident.