1. Get backing track from the internet
Free Guitar Backing Tracks @ GuitarBackingTrack.com This one has only the vocal, drums, bass except for the rhythm guitar during the Hellion and the rhythm during the main solo. Someone must have ripped this from Rockband or Guitar Hero.
2. I import this track into a new Logic project. I create 4 new tracks in Logic for the AxeFx. 1 is guitar left, 2 guitar right, 3 dry Left from the AxeFx input jack, 4 dry Right from the AxeFx input jack. Tracks 3 and 4 will be used for re-amping later. These tracks are all coming from the AxeFXII's USB interface. Tracks 3 and 4 are just the direct signal from your guitar that gets recorded totally dry...if you play those tracks(3+4)back they sound AWFUL..lol.
3. Now I choose a preset on the AxeII and record my performance. I will mute track 3+4 while I record so I don't hear the dry sound.
4. Now I have my AxeII's sound on track 1 and 2. I now mute all the tracks and choose the output for track 3+4 to be the input of the AxeII. I go to the I/O menu on the AxeII and choose the main input as USB instead of front in. I create two new tracks in Logic and assign the inputs to the AxeII USB ch 1+2 on those tracks.
5. Now I playback the performance in Logic and record it on the two new tracks. I am sending the dry guitar input signal tracks (3+4) back into the Axe's USB input and choosing a preset to be recorded on the two new tracks I just created.
6. Now I can continue to use the dry tracks to add new AxeFx tracks as many layers as I want. For this video I only did it once so a total of 4 tracks of guitar (plus the Hellion rhythm and harmony overdub I did). I use a sample delay to offset the re-amped tracks to avoid phase issues...this was my first attempt and I still hear some phase issues, so I need to get better at that
7. Now I mix all the guitar tracks and backing track. I only played the song once but now I have 4 guitar tracks thanks to the Axe's re-amping and USB interface.
Hope this helps a bit
Mark