Once a month for the past two years, Davidsonville musician Bob Sima has performed concerts for cancer patients.
This story was featured in the Capital Gazette:

Wellness House of Annapolis is normally a very quiet place.

Unless Bob Sima is there.

...

"His lyrics are amazing," said Betty Rounsaville, a breast cancer survivor. "I feel peaceful, connected and joyful. This is like musical yoga." Sima, 47, is a self-taught songwriter and guitarist with a growing following.