U can do this actually.
U need to download 'soundflower'. Make sure u start Live up first before Logic.
Then route Logic's audio out > soundflower in > then select soundflower out as an input on an audio channel in Live.
As for playing Ultrabeat using a midi keyboard. Both logic n live should recieved the midi messages.
Hope this helps.
Using Logic's Ultrabeat with Ableton (routing into Ableton)
Re: Using Logic's Ultrabeat with Ableton (routing into Ableton)
iMac & Logic Studio