How Music Can Literally Heal the Heart.

Its structural attributes and physiological effects make it an ideal tool for learning cardiology; studying heart-brain interactions; and dispensing neuro-cardiac therapy

And this:

The reason these heart-music mappings work is because abnormal heart rhythms tend to form simple inter-beat-interval ratios. In fact, the distinctive rhythms in Beethoven’s music so closely resemble those of heart rhythm disorders that cardiologists have speculated that they may be transcriptions of Beethoven’s possible arrhythmia, his interoceptive awareness of his own heartbeat enhanced by his deafness.

Lemons >>> make lemonade. Arrhythmia of the heart >>> compose great music.
There is something important hiding in this. Our very shortcomings, our problems, our flaws, can help us reach for something amazing.

From Scientific American