Near the end of the set it finally dawned on me: It was his control of note length. Every note was held for precisely its full value, not a millisecond less.
P.S. It's only my vision, my ideas; therefore, you have different visions, post it, express it, but do not argue with that stubborn aging WUTP.
It's a very important point about the "note's length" for any bass player playing any kind of "easy-listening" groove-based music!
(And it comes BEFORE any kind of "microtiming" nuances - "in front/behind the beat"...)
Maybe, with "thinner" blues (band's) texture makes it (the note's length) more "visible"?
Yes, it's very important to know the length of those simple bass notes in blues. When I'm transcribing a bass line of a good bass player, in order to obtain a similar "feel", groove, sometimes I need to use even the 64th notes to properly articulate the note's length with a DAW, Guitar Pro, sequencer, etc...
(P.S. Attention, those who follow a different but "respected" school of thought about "non-artistic, non-feeling, non-grooving, academically-mechanical way of practicing,
please(!), disregard my comment!)
Also, especially in Blues, the drummers tend to play/hit their snare with some delay/behind the beat/"pocket"; therefore,
either you (as a bass player) should stop your note/s before that snare hit, or make sure you can "visibly" adjust it in order to match the drummer's snare. There is nothing more irritating for me to see/hear a negligent attitude of the bass player who sometimes stops that note before the snare, sometimes plays with the snare, sometimes plays behind the snare, etc...
Blues is all about "feel"...which can't be taught. So listening closely to the masters is a must.
Yes, it's all about that "feel". Any bass lines must have some kind of "feel" but Blues requires more of it!
My amateur advice for any beginner blues bass player.
I know, I know it's all about that form - the twelve-bar blues, and I have nothing against it, but...
For me, Blues starts with that Groove, Feel, Mood, Character, Attitude, etc... of just on one (1) root note.
At first(!), I don't care what kind of chord substitutes are used to "enhance" and embellished a chord progression in Blues.
It's all about that simple but dynamically and properly length-wise articulated groove with the right Feel, Mood, Character, Attitude.
When you are comfortable playing a simple Blues groove just on one root note, start adding other chord notes, etc...
(P.S. Attention, those who follow a different but "respected" school of thought about "non-artistic, non-feeling, non-grooving, academically-mechanical way of practicing,
please(!), disregard my comment!)
Here is another thing that tend to irritate me while listening (usually live) to a Blues band.
The band starts a song/a new song. The bass player is "all in" and providing that dynamically properly articulated groove with a correct feel, mood, but...
When a guitar player starts another "long" round of soloing batches the same bass player gets bored(???).
The feel, the mood, the groove, "the moment" is gone.
I don't like it at all.