Quote Originally Posted by RobertM View Post
...downloaded the "Styles Pack" and plugged the iPhone into the PA, turned off the drums and piano and just finished our first set with an "iBass" player.
Hi Robert, thanks for your enthusiasm and report. Good to get feedback.

One thing we are aware of using it in a live situation through a PA is when you transpose in Song view. You might normally hear the clicks as the picker (tumbler) moves through the keys as you are selecting the key to transpose to.

In the Settings of the iOS device itself (not iReal book's settings) you will need to turn OFF keyboard clicks to prevent this from happening.
iOS device>Settings>General>Sounds>Keyboard clicks.