i have been in at least four different pagan groups/bands that sang...

Mothertongue
Urban Myth
Brigid's Brood
Green Crown

Desite the somewhat pedantic tone of some who question how to define a pagan, not that this thread is about that, but it came up, I think maybe it would help if we use the term "neo-pagan" 9as opposed to paleo-pagan).

Back to original question: I think on the whole many neo-pagans would prefer more singing and less chanting.