Place to Go (Istanbul)

Hello,

I am one of your new members and I have a question for the expats who live in Istanbul.
On Bayram, I will host some friends from Austria and UK. As expats, where would you advise me to go out at night? Do you have some favorite clubs&bars around Taksim, where you can listen to a good music? I have of course some places where I usually go, but wanted to ask expats where they enjoy most?