T-Block & Chevonee are right--that's talk music for you.
Our players were playing some rather different talk music today:
--real jazz stuff (soft though & not distracting)...with beautiful, yet very simple descending scale runs
--I had the opportunity to go near the players & saw that they were just playing 2 or 3 basic chords in the key of F & then running the scale down twice or thrice & then play chords in Bb & repeat the pattern...it sounded jazzy to me, but qualified as talk music because it made everything flow while speakers were talking.
So, MrAndrew, If your jazz is nice background music/ is able to accompany the speaker, by all means play it--it will sound very cool to the congregation I'm sure...after all, you would have been playing the songs in a non-jazzy style..variety is very powerful.