I started on accordion lessons at the age of 9 in 1961 and within a few years I taught myself piano, guitar and bass. Five years ago I had a stroke that messed with my right side and took my ability to play accordion, guitar and piano effectively. I've been playing mostly bass for few decades so I managed to retrain myself on bass since my right hand thumb, index and middle fingers were slightly less effected by the stroke. Also I had a show scheduled a couple of days after I was released from the hospital so I worked real hard on getting my right and left hands to coordinate again, not miss strings with my right and simplified my parts. I was able to play bass at that show and every one since.
So, bass is all I play now.