White Album, when's your last listen?

Okay, I have a vinyl copy purchased in 68 or 69 which of course was worn out long ago. Now I'm on my second cd copy after one of my daughters "borrowed" my first copy, and my grandson is listening to it now.
Well the other night I popped in the first cd and sat down to listen. When it finished I hit play again. The music truly is timeless. The next night I did the same with cd #2.
Absolutely wonderful stuff. The biggest surprise was on the song "I Will." My "BeatleSong" book says this was recorded by Paul and Ringo with Ringo on drums and backing vocal and Paul playing the rest. While listening I noticed Paul mimicking the bass line with "doo doo doo" in the right speaker. Impossible to guess how many times I've listened to this through speakers or headphones but never noticed this before, wow.
Think I'll try Sgt. Pepper next.