inclusion criteria :  adult patients; undergoing scheduled orthopedic surgery, under spinal anesthesia; non-cancerous, functional; in traditional or outpatient hospitalization; requiring a passage in PACU; agreeing to participate in the study (consent form).  exclusion criteria :  Children; under tutorship or curatorship; having known hearing problems (hearing loss or not, deafness) reported during the anesthesia consultation or detected during the collection of preoperative data; having cognitive disorders (dementia, disorientation) reported during the consultation of anesthesia, not allowing questions to be answered Patients equipped with their personal music.  The following will be excluded when they arrive in SSPI:  Patients who received a benzodiazepine during the intraoperative period; Patients whose spinal anesthesia has been converted to general anesthesia;