Music met medicine when a patient played a clarinet solo as she underwent brain surgery for Parkinson's disease and proved that the treatment was working in real time.

Denise Bacon, 65, saw her finger movements improve instantly during four hours of Deep Brain Stimulation (DBS) surgery — all while staying awake and performing on the musical instrument, London's King’s College Hospital said in a news release Tuesday.

The retired speech and language therapist was diagnosed with Parkinson’s in 2014, She has since suffered difficulties walking, swimming, dancing and playing her beloved clarinet as the progressive neurological disorder that affects movement has taken hold of her body.

To help Bacon get these abilities back, Keyoumars Ashkan, professor of neurosurgery, performed DBS on

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