Simone Westholt-Smith

Simone Westholt-Smith is an alternative practitioner of psychotherapy, supervisor and coach (ISC). She owns a practice in Frankfurt/Main: Peter Hess® Sound Massage, Sound Therapy, hypnosis, creative coaching, solution-oriented short-term therapy, and supervision. She is an authorised trainer in Peter Hess® Sound Massage and Sound Methods since 2009.

Cordula Tolkmitt

Cordula Tolkmitt is an occupational therapist and has been working in her own occupational therapy practice since 1999, focusing on psychological-functional treatment. Specialised therapist for psychiatry and psychosomatics in occupational therapy, certified sensory integration therapist, gestalt therapist and instructor, trained in parts of concentrative movement therapy and body therapy. The body-oriented psychotherapeutic methods are based on Developmental and Depth Psychology mental models. In concentrative movement therapy and body therapy, perception and movement are the basis for acting, feeling and thinking. She is a trained Peter Hess® Sound Therapist since 2020.


Angelika Rieckmann

Angelika Rieckmann is an occupational therapist since 1988, with professional experience in the fields of neurology, orthopaedics, rheumatology in rehabilitation centres in Switzerland and Germany, paediatrics / early intervention, and working with the disabled. She is a Peter Hess® Sound Massage Practitioner, Sound Therapist and authorised Sound Massage Trainer since 2003. Seminar leader in Germany and abroad, especially for medical-therapeutic professions, since 2005. Since 2008 she is full-time self-employed in her own private practice and “School for mindfulness” with a sound and seminar room in Bad Driburg. Since 2012 she develops and manages the PHI further training seminars “Sound in Neurology and Psychosomatics I + II + III”.

Dr. phil. Rosa Matzenberger

Dr. phil. Rosa Matzenberger is a psychotherapist, a systemic family therapist, hypnotherapist according to M. E. Erickson, Ego-state therapist, clinical and health psychologist, as well as infant, child and adolescent psychotherapist and psychologist. In addition, she is a supervisor in the clinical field, and in the independent practice, seminar and teaching sector.

Also, Peter Hess® Sound Massage Practitioner and lecturer at the PHI since 2001.

Bärbel Kirst

Bärbel Kirst is a music therapist in a psychosomatic clinic since 2010, where she applies the Peter Hess® Sound Massage on a daily basis. Building on the experiences of standard music therapy with instruments, it was proven that singing bowls offer an even more intense opportunity to completely let go, to tolerate new things, and to come into contact with one’s innermost being, thereby sensing one’s own needs and experiencing self-efficacy. Together with elements from hypnosis and enriched with down-to-earth cheerfulness from her earlier work as a sports and dance teacher, as well as LifeKinetics trainer, a lot of relief can be experienced, especially for psychosomatic illnesses. The singing bowls always appear to be healing and moving one forward.

Juno Sommer

Juno Sommer is a registered nurse and nursing home director. She studied nursing care management. Extensive professional experience in care and nursing of the elderly and other people in need of care, with a focus on living with dementia. She is Peter Hess® Sound Expert for dementia, as well as founder and board member of “Wir Sind Altenpflege e.V” (“We are Elderly Care”). Lecturer and trained coach at the GAP project of the Federal Government’s Care Manager. She works nationwide, lives in Netphen, North Rhine-Westphalia.

Rosemarie Bleil

Rosemarie Bleil is a qualified geriatric nurse, social management gerontologist, Peter Hess® Sound Educator in nursing care, dementia, and palliative care. She is an authorised instructor in Peter Hess® Sound Methods since 2013.

Prof. Dr. med. Dr. rer. nat. Christian Schubert

Prof. Dr. med. Dr. rer. nat. Christian Schubert is a physician, psychologist and psychotherapist. For more than 20 years he has been researching the correlation between psyche, brain and immune system. He is head of the Psychoneuroimmunology Laboratory at the Clinic for Medical Psychology at the Medical University of Innsbruck, and head of the working group “Psychoneuroimmunology” of the German College for Psychosomatic Medicine (DKPM). He is author of numerous highly regarded specialist publications. His research focuses on the development of a research approach for studying psychosomatic complexity.

Kim Kassandra Schmid

Kim Kassandra Schmid has been teaching Pilates and group fitness classes for over 17 years. She is a passionate yoga teacher and sees herself as a lifelong student. She is a certified Pilates coach, nutritionist, experienced yoga teacher and seminar leader for Emily Hess® Sound Yoga. She works as a personal trainer, is a mentor and leads yoga seminars, yoga classes and workshops. Kim studied history and art history. Besides being a self-employed yoga teacher, she works as a lecturer and project coordinator in adult education. In her yoga classes, Kim combines well-founded historical and spiritual knowledge. Joy is always at the centre of her work. With the Yogimobil® Teacher Training, she also offers a Yoga Alliance-certified yoga teacher training based on her own concept in the seminar house of the Peter Hess® Institute in Schweringen.

Kim Kassandra Schmid:

Dr. phil. Christina Koller

Dr. phil. iDr. phil. Christina Koller is a qualified social worker and did her doctorate from 2000-2007 on the curriculum development of Peter Hess® Sound Education and its practice. For more than 20 years she has worked closely with Peter Hess, and at the PHI in the departments of press and public relations, as well as research and development. In addition she is a board member of the European Association for Sound Massage Therapy.