The banjo is a musical instrument, and like guitars, banjo instruments are seldom taught in schools. Some people who partake in the banjo consider it a difficult one to play. This is probably true, though if you are a determined and disciplined person, learning the banjo is not so difficult to do.
The most difficult characteristics in learning the banjo is building the bridge for the guitar, and learning how to tension the strings to produce volume. Not surprisingly, those are the most difficult things on any instrument. By the same token, playing it is easy; more than you could ever imagine.
I have been playing banjo for almost twenty years. After two bout of physical injury to my back, I decided to find a new outlet to play my banjo. I found out about although banjo is not a difficult thing to learn.
With your experience, you can easily develop your technique to play this banjo. There are many books and software available that will teach you a few times the bare basics, which will be plenty to allow you to enjoy the niceties of banjo. Of course, getting high-step or full-blown banjo, will put you to a higher level of proficiency.
I am very proud to say that learning a few easy steps on the banjo will put the whole process into perspective. By learning, and putting in the hours, you can slowly develop a new technique that will always give you the satisfaction that every banjo player feels. What better way to use your spare time.