jetboy 

its pronounced "tange".

geez..

but yeah, if you consider the japanese pronunciation to be the correct one- then its little to no emphasis and every syllable just as it looks. in Japanese the sounds would be ta-n-ge (たんげ) each one given the same time and emphasis - and the n having a bit of "m" in it. g is hard, and a and e are the short forms.

that said, I think it is a family name. which means its probably "tan" "ge" as two separate symbols which might lead to some emphasis - but not so much as to change the word unless you have a very good ear... but I am not japanese enough to know. (though I do speak it ok)