Led by Queen Mary University of London, the study team analysed the results of 73 randomised controlled trials looking at the impact of music on postoperative recovery, compared with standard care or other non-medical interventions such as massage.
The systematic review involved nearly 7,000 patients in total and the findings confirmed, for the first time, the link between music in the operating theatre and a significant reduction in postoperative pain, postoperative anxiety and the need for postoperative pain relief medication.
Choice of music, timing and duration varied in all the studies analysed, and evidence showed these factors made little difference to the outcome.
Music was effective even when patients were under general anaesthetic, according to the results published in The Lancet.
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"Currently music is not used routinely during surgery to help patients in their postoperative recovery," said Dr Catherine Meads, who led the study at Queen Mary University of London but is now based at Brunel University London.
"We hope this study will now shift misperceptions and highlight the positive impact music can have," Meads said.
The scientists are following up this research with a pilot scheme of introducing music into operative settings at The Royal London Hospital. The two areas piloted will be women having Caesarean sections and women having hysteroscopy.
Patients will submit their music playlist on a device of their choice, and this will be connected to a pillow with inbuilt loudspeakers.
A recent study published in the Journal of Advanced Nursing, and conducted by Imperial College London, had claimed that playing music during surgery can make it difficult for surgeons to communicate and increase tension between the doctors and staff, thereby putting patients' life at risk.