Vocal and instrumental improvisations are used to facilitate relatedness and communication between the client and therapist, while taking into consideration the client’s musical and individual-differences in order to maximize back-and-forth reciprocal musical interactions. In the context of a therapeutic relationship, as therapy proceeds, individualized themes and songs are co-developed which form the foundation for spontaneous expression and affective interactions. Depending on the needs of the client, sessions can be conducted by a team of two therapists; one of whom is primarily responsible for providing the music, while the other facilitates the client’s musical participation.