Quote from: mwpfoot on Apr 11, 2017, 11:19AMSometimes I'll focus on harmonizing the lead. This can be nice approach on a ballad. You can contribute to the emotional effect: listen how the tension in Closer Walk With Thee builds builds builds before finally releasing. Your harmony choices should contribute to that and escalate things. Also nice if the band is kind of all over the place: here's the tune everyone, it's nice we should learn it.
Sometimes I'll try and double the bass with embellishment. This can be effective when the bass is stand-up but the bass line is more tuba-oriented. Also works if the tuba player is keeping it very safe but the tune kicks in and wants more. Also nice if the band is kind of all over the place: here's the bass line everyone, it's cool we should learn it.
Mostly I try to react to the tune and lead to the next chord. I think that's our primary role. If the trumpet asks a question, I try and answer it. If the trumpet makes a statement, I ask a question: yes, and? The tuba will generally have the root covered, and the tune has a note in the chord too. So a good destination for leading the chords might be one of the missing tones. Or maybe what you are saying tapers off. Or maybe you start to tell the same story together.
That's how I think of it. And I don't know how to approach any of this smartly unless I really, really, really know the tune. Everyone who used to play this stuff would play it daily and know the tunes as well as we know Twinkle, Twinkle Little Star. Some of these songs are dead serious and some are very silly. These gigs go wrong when the players in the band don't know the tunes, and don't care to learn them for next time when they tank, and basically smear every picture with one color: the trombone "thing" vs. the clarinet "thing" vs. the bored tenor player playing bebop licks ...
So listen listen listen to good bands on YouTube and you'll start to hear these sorts of approaches and also learn some tunes and hopefully be on your way.
A good approach to the trombone part in a Dixieland ensemble - particularly paragraph 3.
I also like your remark about the players knowing the tunes.
It happens that "Just A Closer Walk With Thee" and "The Saints" are usually amongst the first tunes you learn when playing Traditional Jazz, but you still have to know the history and the feeling behind them, especially when you are recreating a N.O. funeral.
I would also point out that many of the jazz tunes originating from New Orleans are quite complex with several different themes and specific parts, breaks etc. for the different instruments. You absolutely have to know what you are doing with these tunes and there is no place for "loud, stupid trombone tricks". Ever really!
The reason for the sometimes complexity and the different themes in New Jazz Orleans jazz tunes is because of the many musical influences: African Drums, Work Songs, Spirituals, Plantation songs, Marches, Cakewalks, Opera, Creole music, Brass Band music, Cabaret, Minstrel music, Blues Stomps and Ragtime. In terms of the tailgate style, the early jazz trombone players drew quite heavily on the trombone part in Military Marches. I did not get to play any straight music until I had been playing jazz for many years. When I was playing some marches with a concert band in fairly recent years, I suddenly realised that many of Kid Ory's lines were straight out of the trombone parts written by John Philip Sousa for his marches.
And that's not a bad way to think of the trombone part in the Dixieland ensemble for the OP.
While I am talking about New Orleans, I would just like to remind everyone that the New Orleans Jazz & Heritage Festival is on from April 28 to May 7. If you want to reinfect yourself with the jazz bug, that is something you should not miss. Also popular music fans, because the N.O. influence is right through today's music. My old trumpet playing buddy Derek Winters, who is a ringleader of the New Orleans Jazz movement in the UK and Europe, will be attending. I am sure he will be sitting-in wherever he can. Just say "Hi, from Graham" if you see him.
http://lineup.nojazzfest.com/