Now, in my brain, it seems like I *should* be able to do this without Logic. Totally makes sense, and I've called and recorded with this setup multiple times. I can easily do this in Logic, by creating an Aggregate Device with two tracks - one for my voice and one for my music - and setting Logic's input/output to the Aggregate. I'm trying to: Combine two inputs to send into Skype, so that someone on the other end of the call can hear both my voice (using built-in microphone) and music playing on my computer. So, this question is half about Logic and half about Soundflower, but I figured if any audio folks could help me, it's someone on this forum.