Someone once told me I should know guitar first. Are these instruments different enough that learning banjo is independent of knowing guitar?
I play both fingerstyle guitar and clawhammer banjo, and aside from basic left-hand fretting technique, they are very different. Here are some ways in which learning the guitar first will actually make learning the banjo harder, not easier:
- On the standard five-string banjo, the top string isn't a bass string; rather, it's a treble drone string. If you're used to your thumb playing bass notes (as on the guitar), this will be really confusing. All of your Travis-picking habits will get in the way.
- Clawhammer technique is totally the reverse of fingerstyle guitar technique. Instead of using the fleshy part of your fingers and plucking up, you use the back of your fingernails and hammer down. Very disorienting at first.
- Except for between the G and B strings, the intervals between guitar strings are all the same, which makes fingering scales relatively consistent in different ranges. This isn't the case on the banjo, where the most popular tunings have completely different intervals between strings.
This isn't to say you can't do it. I'd been playing guitar for almost twenty years before I picked up a banjo, and with practice, I overcame all of these obstacles---and I love them both. But if you're only interested in the guitar as a gateway instrument to the banjo, I'd say don't bother. Go straight for the banjo.
There are common elements between both elements, moreso than between a cello and a flute for example, but there's absolutely no reason you should know guitar first. Experience with guitar would probably help to some degree with banjo, and experience with banjo would probably help to some degree with guitar. But that assumes prior experience.
If all you want to learn is banjo, then learning guitar will be a waste of your time. You can learn banjo most effectively by learning banjo. Spending a year on the guitar might make you better at banjo than someone who has never played an instrument, but it definitely won't make you better than you could be if you played banjo for that year instead.
Now, if you have decided to practice banjo exactly 1 hour per day and are looking for something else to do in your free time, adding guitar wouldn't hurt (assuming you don't strain yourself). But decreasing banjo time in order to play guitar will result in worse banjo playing in the end.
Disclaimer: I play guitar but not banjo.
There is no law that requires it, I find most banjo players did start on the guitar but not all-I have played banjo for 5 years and don't know a single guitar chord.
Like a lot of adults it's just a hobby for me, I have a job and a family and don't have much time to play or to practice. I only have time for one instrument and I happen to like banjo better. Now if you wanted to join a group, professionally or semi professionally then you might want to learn rhythm guitar so that you can back up other players, and you will appreciate other players who extend the same courtesy. And it is fun to know more than one instrument. But in every informal jam I've ever been in, there were plenty of guitar players. I have seen a few teachers insist on guitar first then banjo but in my experience they play the banjo as a sideline and really play and teach better on the guitar. If you want to play a complicated church or theater organ then few if any teachers will work with you unless you already play piano-that's reasonable since the organ has so many voices and options it is a waste of time to learn keyboard on it. But I don't think any good banjo teacher would ever insist on guitar first, they have different sounds and chords and generally players and students have reasons for wanting one or the other.