Whats this effect called?
 

Hi guys and gals.

I was chilling in a coffee shop a few days ago when a girl git up to sing some songs. while singing Fleetwood mack songs she would press a pedal that made it sound like there were 5og her all singing in harmony...kind of.

Does anyone know what this effect is?

Cheers muchly,

Tom

That was supposed to say 5 of her singing in harmony *

Something like this...

http://www.guitarcenter.com/TC-Heli...XGP&cagpspn=pla

Yes, brilliant!!!

Thank you!

There are other models and brands with different features. That one works with your guitar to establish the song's key along with I imagine other things.