HI
I was drawn to the irish Bouzouki sound because of some of the anicent sounding medieval cords i heard in the playing.
(yet it is very versitile.. celtic bluegrass rock middle eastern are all posible)   it sounds deep though it is a fairly simple mid range instrument like a guitar not even as deep really...its a trick of relativity in the tuning...

eg. G+a+bc+D+e
    12345678    or
    1 2 34 5       plus drone and a second a third or a fourth
sound magic happens

it is a simple instrument and easy to play fast on..
thus the complexity of celtic tunage is given an ease of neg-go-she ation...and rewards noodling with rather cool stuff..... with (for me) a celtic accent... I think of it as being like a celtic telephone.. if you are inclined to be a celtic music party line eavesdropper...it picks up other channels as well of course....

me heros play in GDAD ADAD GDAE AND   MANY OTHER TUNINGS....
look through the postings here at MUDCAT and you wil see there has bin a lot experimentaion with tunings =&%#@ exciting times..
I think this is a great instrument and you are in for a real treat if you get one ebay prices for new zooks with accostic pickups is in the $350-400 range at the moment...or if you are handy a set of strings is just $10 and you can build your own