"Music Therapy can be an effective and enjoyable tool for reducing the symptoms of numerous conditions, including depression and anxiety**"
". The researchers programmed 12 × 2 h sessions for this group of patients. A pre-test/post-test design using the Beck Anxiety and Depression Inventory was used. The Wilcoxon statistical test for related groups in global scores demonstrated a significant reduction after the intervention. The results demonstrate that music therapy was effective in reducing anxiety and depression levels in GAD patients. Additional studies are required to corroborate these pilot data."
https://www.sciencedirect.com/science/article/abs/pii/S0197455615000064