How I Did It
Tools I Used
Macbook Pro.
GarageBand.
Audacity.
Fender Stratocaster (pre-owned!)
Line6 PodFarm.
Line6 KB37.
Samples I Used
All from WillemWillem's.
Original Samples
An additional bass part, for the bridge section.
Process
Converted the MP3 files to AIFF using Audacity (might have added compression in the process).
WillemWillem's original arrangement was largely intact. I only moved some stems to pan more, and also moved the acoustic guitar part as the intro.
Recorded my lead guitar straight into GarageBand (via the KB37 audio interface). Then spent the rest of the time tweaking the sound levels.