De or het jazzafdeling?

The correct Dutch article is:

de jazzafdeling

Rule Words ending in -ing: almost always de. See the rule

How to use jazzafdeling

the jazzafdelingde jazzafdeling
this jazzafdelingdeze jazzafdeling
that jazzafdelingdie jazzafdeling
our jazzafdelingonze jazzafdeling
your jazzafdelingjouw jazzafdeling
every jazzafdelingelke jazzafdeling
which jazzafdeling?welke jazzafdeling?
a big jazzafdeling / the big jazzafdelingeen grote jazzafdeling, de grote jazzafdeling