The Russian school of scientific music therapy has long gained international recognition. It is based on scientific knowledge, objective research and is a global leader in this field.

Here is official information.

1. Russia is one of the first countries in the world where, back at the end of the 19th century, scientific research began on the influence of music on the human body (I.M. Dogel, I.R. Tarkhanov, I.M. Sechenov, V.M. Bekhterev and others).
2. Music therapy received official recognition in Russia in 2003, after the Ministry of Health of the Russian Federation approved the “Methods of Music Therapy” (S.V. Shushardjan, A.N. Razumov).
3. Since 2003, professional courses in music therapy have been operating in Russia on the basis of the Russian Scientific Center for Restorative Medicine and Balneology of the Ministry of Health of the Russian Federation.
4. In 2005, the neurohumoral-resonance theory (S.V. Shushardjan) was proposed; it became the scientific foundation of music therapy and has received international recognition.
5. In 2009, the National Association of Music Therapists of the Russian Federation was established, standards and competencies were approved, and a certification system was created.
6. In 2019, the European Commission allocated a grant for the introduction of scientific music therapy into the curricula of universities in 27 EU countries.
7. Today, digital technologies and hardware-software complexes of the Russian school of scientific music therapy are used in Russia and in numerous foreign countries. [1]

Music therapy is a field of restorative medicine that uses various musical-acoustic methods, technologies, and approaches (more than 50 as of today) to correct mental and physical health. [2]
M.R. Mogendovich (1966), V.B. Polyakova (1968), S.V. Shushardjan (1994/2012) and other authors have demonstrated the effectiveness of music therapy methods in the treatment of psycho-emotional disorders and internal diseases. [2–4]

“Sound healing using solfeggio frequencies may be an effective tool for healing trauma and DNA repair.”This study examines the role of solfeggio music and tones as sound healing modalities for a variety of mental, emotional, and physical ailments. Information was collected from 3 websites, 1 book, 3 academic journals/research dissertations, and 1 documentary film on sound healing. Information on the meaning of archetypal sounds/symbols/shapes to our subconscious is very limited, although evidence of their use can be traced back centuries. The study findings revealed that scientific research proves that "atoms vibrate against each other to form molecules, and these atoms and molecules have characteristic vibrational waves that can be measured in hertz. Archetypal sounds such as solfeggio frequencies are measured in hertz and have been found to correlate with the modern sound scale, shape-note chanting, Gregorian chants, instruments, and physiological response patterns. The role of sound and music in mind-body mechanisms, consciousness, communication, and emotions is explored using a wide range of established mathematical, scientific, and evidence-based theories. Research demonstrates the influence of these frequencies on heart rate, and a stabilization of participants' emotional and mental states was observed before and after sound therapy. The results confirmed that these frequencies are beneficial for patients, enhancing the effectiveness of therapy and alleviating mental, emotional, and physical suffering.

Joseph, Sonya. (2019). Sound Healing using Solfeggio Frequencies.

Harmonic sounds are played simultaneously with paired sounds, reducing the brain's rhythm to a delta rhythm of 2.5-3.5 Hz.
This oscillatory state leads to an increase in the body's energy generated by the energy centers, or "chakras." At the same time, brain activity decreases to a delta rhythm of 3 Hz, which induces relaxation by breaking down pathological connections between neurons. This ultimately leads to the normalization of the body's functioning as a whole.

Bakhramov A. Kh., Kupchinsky O. A. Awakening. - M., Inter-scales, 1991, p. 68 - 11; Abramovich A. Psychoenergetics and self-regulation. — Vilnius, 1984, p. 52 - 91

Music has always been a powerful tool for evoking emotions and influencing the mood of listeners. Over the years, various musical frequencies have been studied for their potential effects on the human psyche and physiology. Among these, the solfeggio frequency, particularly 528 Hz, has attracted attention for its purported "healing" properties. But how does it compare to the internationally recognized standard tuning frequency of 440 Hz?

Understanding Frequencies: 528 Hz vs. 440 Hz
Typically, the global standard for tuning musical instruments is set at 440 Hz. This frequency serves as the reference tone for tuning, and in this musical scale, there is no note that resonates at 528 Hz. However, music that is specifically tuned and composed to include the note 528 Hz is called solfeggio frequency music.

Study: The Effects of 528Hz Music on Human Physiology and Mood
A recent study examined the potential effects of 528Hz music on humans. In this study, nine people listened to soothing piano music resonating at either 528Hz or 440Hz. Participants sat next to a speaker, and the only variable between the two music conditions was frequency.

Key findings of the study include:
Oxytocin Levels: After exposure to 528Hz music, participants experienced a significant surge in oxytocin levels. Although 440Hz music also resulted in an increase in oxytocin, the increase was not as pronounced as with 528Hz.
Cortisol Levels: Cortisol, often referred to as the "stress hormone," showed a significant decrease 30 minutes after participants listened to 528Hz music. On the other hand, 440Hz music resulted in only a slight decrease in cortisol levels after the same duration. Stress reduction: Using salivary biomarkers, electrocardiogram data, and mood questionnaires, the study concluded that just five minutes of exposure to 528 Hz music can significantly reduce stress levels. This effect was not observed with 440 Hz music.

Conclusion:
While the solfeggio frequency, particularly 528 Hz, is often touted for its healing properties, empirical data such as the study mentioned above provides a more nuanced understanding. The potential benefits of 528 Hz music are intriguing, but more extensive research is needed to draw definitive conclusions. In summary, the study found that people who listened to 528 Hz music experienced a deeper sense of relaxation and stress reduction compared to those who listened to 440 Hz music. However, it is important to note that the study was conducted with a limited sample size, requiring further research to confirm the findings.

Music is traditionally considered one of the most powerful means of emotional regulation of human mental activity,—considers a full member of the International Academy of Informatization. Professor Doctor of Pedagogical Sciences V.I. Petrushin
Petrushin, Valentin Ivanovich. Musical psychotherapy: Theory and practice: Textbook. manual for university students studying pedagogy. specialties
/IN. I. Petrushin. - Moscow: Vlados, 2000. - 175, [1] p.: ill., notes: 21 cm; ISBN 5−691−251−1.
Music therapy specialists offer the following treatment regimen: You select three types of musical pieces that consistently express aggression - motivation - release.
For example, you listen to aggressive music for I. F. Stravinsky’s ballet “The Rite of Spring.” Then immediately move on to works in the style of Johann Sebastian Bach, which will help you change your mood under the influence of soft soothing sounds.

Recommendations for listening to music to reduce the level of aggression: dramatic music with a transition to calming (slow) music: