Biabman,
There are some sweet jazz styles with vibes. The rhythm parts are as you suggest, namely vibes playing held chords. And the vibes player is the great Steve Nelson.
You can listen to them by playing the band demo of the ones with “rhythm” in the name,
https://www.pgmusic.com/realtracks.artists.php?a=43&os=winyou can find them in the style picker by filtering by Steve Nelson.
Thanks AudioTrack and Peter for helping out so quickly!
It's funny what happened.
My BIAB was set up and working nicely a couple of months ago.
Then I needed to create some extra space on my SSD and I deleted a bunch of music stuff.
I just checked and ALL of my RealTracks have disappeared!
No wonder I couldn't find anything.

I'm going to have to go back to some of my backups and either restore the files, or re-install
them.
I'm sure that will solve the problem.

Thanks again!
BTW, I was able to listen to some really nice vibes stuff when I chose to replace the midi parts with RealTracks, so at least the demos were working.

But when I tried to select the parts to work in my song, up popped the message saying that the files were not available.