Good morning. Here is an extensive blog post about eefing that I bookmarked 13 years ago:

https://blog.wfmu.org/freeform/2009/03/eef-beat-manifesto.html

(shout-out to WFMU for their wonderful blog, which I had forgotten about, and the fact that this 13-year old URL *and* all of the attached mp3s (that I've checked so far) still work) #eef #eefing