Contemporary psychoanalytic theory and practice focuses on the concept of intersubjectivity, in which the therapist leans on their subjective experience of being together with the patient as a method of understanding the patient, their needs, and the work that is being undertaken. Throughout the music therapy literature, authors take various positions regarding the relevance of psychoanalytic thinking in music therapy treatment, sometimes eschewing its use because of misconceptions about the purpose of attending to such phenomena. This article attempts to describe some theoretical aspects of the application of intersubjectivity and psychoanalytic theory to music psychotherapy practice, focusing on the inherent humanistic qualities of this understanding of therapeutic relationship and healing. The music therapist who attends to the dynamics of intersubjectivity is strongly connected to humanistic concepts of selfhood, agency, relationality, and aestheticality as the work focuses deeply on the here-and-now relationship and on the meaning co-created between therapist and patient in each clinical moment. Attending to intersubjectivity positions the music therapist for connecting to a patient’s whole self, for more deeply understanding the work of therapy, and for finding groundedness and confidence as a therapist. It also requires an awareness of the additional psychological complexity that music brings to the clinical space. This article draws upon literature from depth psychology and from the findings of the author’s dissertation research studying music therapists’ experiences in clinical relationship.