Introduction: Living with a person with dementia (PWD) causes physical and psychological problems in family caregivers (FCGs), as well as a reduction in their Quality of Life (QOL). The purpose of this study was to examine the possible effectiveness of the therapeutic songwriting method for improving the QOL and well-being of FCGs of PWD. Methods: The sample of caregivers (n = 21) was divided into three homogeneous groups that received 12 intervention sessions. A non-randomized, quasi-experimental design with repeated measures (pre-post intervention) was employed to determine a possible therapeutic effect. The State-Trait Anxiety Inventory (STAI), Short-Form Health Survey (SF-36v2), Beck Depression Inventory, and Rosenberg Self- Esteem Scale were administered before and after the intervention. Results: The results showed a decrease in anxiety and depression scores and an increase in scores of self-esteem after the intervention. Regarding QOL, post-intervention scores in the Mental Component Summary and Mental Health were significantly higher. In contrast, a small effect size was observed for difference between pre-test and post-test on the subscales of QOL: General Health, Social functioning, Role Emotional and Bodily Pain. Discussion: This exploratory study concludes that therapeutic songwriting can help to reduce caregivers' symptoms of depression and anxiety and improve their perceived self-esteem and QOL. This work reinforces the progress made to date and provides new results that highlight the benefits of music therapy for FCGs of PWD.