BladeDancer Dance Cost?

Why would a dance (or series of dances) that is listed at costing 60 mp (or 120 mp or 180 mp for 2 or 3) actually cost 150 mp (or 300 etc..)?

Theyre dancing every 2 minutes....do the dances need to run out completely before dancing again?

yes, all dances/songs must be out completely to minimize mp consumption.

So, lets say that the bd will only dance warrior, inspiration and fire. All three need to be out before redancing, or just the particular dance he's about to re-dance? Is there any set guide on how much extra mp is used when dancing while other dances are still up?

it works like this.

0 dances up, cost 60.
1 dances up, cost for new one 60+30 i think, i dont remember the + values sorry...
2 dances up, cost for new one 60+60 or something..
and so on unthil it caps at a certain number of dances where they all cost the same after that.

All songs and dances needs to be out so you have 0 dances/song on you to only pay60mp for the first dance.

That's it...thanks Nifera. Makes complete sense now. :)