Abstract: To determine the effectiveness of music therapy on patients experiencing anxiety during cardiac catheterization at the GKNM Hospital in Coimbatore, a pre-experimental study was carried out. The studys major goal was to compare patients anxiety levels and the impact of music therapy. A quasi-pre-experimental one group pretest-posttest design was adopted for this study. This study was conducted in the pre cath room (ward 8) of the G. Kuppuswamy Naidu Memorial Hospital in Coimbatore. This study used a practical sampling technique on 60 participants chosen as samples. Patients who were admitted for cardiac catheterization had their data gathered. To evaluate the demography, structured interview questionnaires were used. The levels of anxiety and its accompanying signs and symptoms were evaluated using the modified Hamilton Anxiety Rating Scale.