Inclusion Criteria:

• Male or female, aged over 18 years.
• Patient who has signed an informed consent form.
• Patient scheduled to undergo proctological surgery (for hemorrhoids, fistula, or anal fissure) at the participating institution.
• Must be affiliated with a social security system or be a beneficiary of such a system.
• Patient must have access to the necessary technical means (smartphone, computer, tablet) to use the Music Care® application.

Exclusion Criteria:

• Refusal to consent.
• Patient unable to read, write, or understand French.
• Vulnerable patient according to Article L1121-6 of the French Public Health Code (CSP).
• Adult patient under guardianship or curatorship or under legal protection (safeguard of justice).
• Patient unable to personally give informed consent according to Article L.1121-8 of the CSP or an adult protected by law.
• Pregnant or breastfeeding women according to Article L1121-5 of the CSP.
• Patient who has already participated in a study within the last 12 months.