Singing as a rehabilitation method from the viewpoint of Avicenna (980–1037 AD)

We read with great interest your published article entitled “singing for Lung Health: a systematic review of the literature and consensus statement” that explained the effect of singing on lung function.1 In the background, authors pointed to singing therapy as a novel approach for respiratory disease treatment;1 but it must be said there is already some evidence of this discovery found many centuries ago.