Damn, beaten to the punch... you're right; seeing how the term 'symphonic metal' was actually coined due to Therion in the first place I'd say it's a fair bet that that's what you'll get when listenting to their music.Incredible Bullshitting Man said:
Also you might want to check out 'Haggard', some truly epic songs there.
http://www.youtube.com/watch?v=xpf1-VUyOa4
http://www.youtube.com/watch?v=cM8BIPbyrrg