Inclusion Criteria:  Premature babies at 30-37 weeks of gestation, There is no congenital anomaly affecting respiration and spontaneous respiration, No intubation, Absence of congenital or acquired malfarmation related to hearing, Absence of hyperbilirubinemia requiring exchange transfusion, Absence of intrauterine infection (rubella, syphilis, toxoplasma), Absence of intracranial bleeding, No sedative, opioid and anticonvulsant drugs were given before/during the study, Parents' consent to participate in the study,  Exclusion Criteria:  Having a diagnosis of asphyxia, Congenital hearing problems in family members, Intubating the baby after starting the research, Parents have a speech impediment, Parents have psychological problems,