The present research presents the results of a quasi-experimental study on the effects of classical music interventions in gynecological medical units. The study involved 60 women between 18 and 67 years old. Of these, 30 were included in the experimental group and 30 in the control group. The experimental group was exposed to listening to recorded classical music, in the waiting area, before the consultation or medical intervention, for about 15-20 minutes. The instrument used for the measurement of anxiety were The Hamilton Anxiety Rating Scale, HARS (α = .92), and The Hospital Anxiety and Depression Scale, HADS (α = .89). Intervention through music had positive effects on reducing the anxiety of patients waiting in the waiting room of the medical office. The level of anxiety was higher in 18-23 years patients than in patients over 24 years old, even they were exposed to the same conditions of listening to classical music in the waiting room. The level of HADS anxiety differs significantly according to the level of education of the patients. Further research is needed on music and its effects on patients, given the low cost of implementation and the potential of music to reduce patient stress.