I learned to clawhammer a 5-string in about 5 minutes. Tom Paley taught me to the tune, "Johnny Booker". I'm really lucky in that I know a few famous banjo pickers.For versatility, you must place Roger Sprung at the top of the list. He breathes, eats and drinks banjo, that is when he's not adopting korean orphans. Roger does the usual hilbilly styles, 3-finger (scruggs) clawhammer, frail etc. But, he also does some Mozart, wagner and other classical composers. His "Maple Leaf Rag" by Scott Joplin is dynamite. I spent a lot of my adult life in the USAF. In between enlistments Roger and I worked together on the Boardwalk in Coney Island, (Brooklyn, NY.) I was just going to write that I couldn't remember the name of the place, but, I just remembered it. It was "The Shamrock" More recently , 1967,68,69 & 70, at the "Black Pearl Tavern" here in Newport, Rhode Island. They quit having entertainment when ownership changed hands. We still work together from time to time. We do "Mozart's Sonata in C" and Wagner's "Under the Double Eagle" with guitar and banjo. I also play different styles. Bluegrass and Clawhammer, of course but I have my own techniques that don't fit into anyone elses "categories". Paul Geremia, the blues man, also lives in Newport and we're old friends since before he started playing guitar. He called me up one day, all excited, and said that he'd found a couple of "Uncle Dave Macon"'s records where he sounded like a ragtime piano (stride piano), "The Wreck of the Tennessee Gravy Train" and "Between heaven and earth", and that I should try to learn this technique. I have these recordings on tape and lp. So, I worked out a method of three finger picking and strumming (everything "down") where I pick individual strings with a thumb pick and strum with the index and second fingernils. Imagine Three finger , Scruggs type rhythm with the backs of your fingers and a thin thumbpick. It doesn't, however' go continuously like scruggs picking, but does go in groups like stride piano. Oh, Hell, it does sound like the two records I've just mentioned. A couple of days later Paul called me up and said to forget it because what he'd heard was actually TWO banjos. Sam MaGee was playing rhythm on a six string (guitar banjo) and Uncle Dave was simply two finger picking the melody. Every now and then at one of my gigs or his we do "The Wreck of the Tenessee Gravy Train" and Paul introduces it calling it "Jody's schizophrenic banjo". His hard-core blues fans look listen with a blank look on their collective faces

What I'm trying to say (aside from bragging) is, "Don't restrict yourselves to one style" If you do, you're missing a lot of fun and musical enjoyment. Never mind the categories, just play the damned thing.
If you play the guitar in the keys of g and c, You should have no trouble with minors, sevenths etc. Start enjoying this great enjoyable insrument. (use a capo & re tune the 5th string accordingly) stick a carpet tack just behind the 4th fret on the fifth string. tuck the 5th string under the tack if you have to have the 5th string higher than "A"

Did someone say "Traditional Irish music on the banjo?" GREAT This is called the "Folk Process" don't let anyone categorize you. When I recorded "Farewell to Tarwaithe" I caught all kinds of flak from Folk Music Purists (Folk Music Fascists) They insisted tht I "Shouldn't use guitar 5=string banjo, steel guitar and bass because it's a Scottish Folk Song and Scots didn't have these instruments when the song was first written". W E L L T H E Y D O NOW, besides, it's now an Americn Folk Song as Well because I'm singing it and I'm American.
Jody Gibson.