One of my favorite bass lines to have was a 3 man base crew. There are an infinite number of ways to skin a 3 legged cat, 3 bass's split so easily into most any time signature. Put the song on and some head phones and you will find inspiration in any of the instruments. Complement another part,
ect. If you have a pit then you can utilize one of the pit to play 4th man out in a pasage that you realy want a 4 bass run.
Hey I had a line that had 3 snare, 2 tenor 5 bass and 3 for the pit and no cymbal players (made a Clara-Weasel play them, HA!) we started 4 weeks before band camp and by week 3 we were down to 1 snare, (one snare quit and the other had to go play tenor after we found out that the tenors (2) had faild the last year and were now unable to march in the band) 4 bass quit and I was down to 1 bass (freshman) and now 2 in the pit. We put the 1 bass man in the pit , made a rack to hold all 5 bass on their sides and let the kid play most of the 5 man part all by himself, the Judges loved it! One said it was the cleanist 5 man bass part he had ever heard, lol!
This is a different animal but John Bonham could put a triplet fill in any time and make it last 3 days....
It's easy, put the bass line on Paradiddles in 4/4 with only 3 bass's. B1-rh B2-lh B3-rr or for him left then right, see paradidles with 3 in 4/4 or poly-rythms anything split the snare part some then split the tenor part. Just don't think of this an anchor for you.
Think of this..?? You
dont have to write a 5 man bass line, you can set back and let 3 have a lot of fun with this.