This randomized controlled study was conducted to determine the effect of music played during the angiography procedure on patients' anxiety levels and vital signs. Patients scheduled for angiography were randomly assigned to either a music intervention group or a control group receiving routine care. Anxiety levels were assessed using validated anxiety measurement tools, and vital signs including blood pressure, heart rate, and oxygen saturation were recorded at multiple time points before, during, and after the procedure. In the intervention group, selected music was played throughout the angiography procedure, while no music intervention was applied to the control group. This study evaluates the role of music as a non-pharmacological intervention for anxiety management during angiography.