I never meant to suggest that playing roots- fifths, melodically as possible is not desireable.
I don't wish to argue, or annoy anyone. My short study of counterpoint in particular, taught me that yes, absolutely, ALL parts ought to be played with a melodicness in mind.
One does not merely play root, fifth, unmindful of melodic aspect. BUT it is a secondary melodic ness, not the primary one.
SOMEONE has to back down, someone in a trio or quartet has to make room for ONE person to be the PRIMARY holder of the "ball" so to speak. USUALLY that person is the traditional melody people, NOT the lowest pitched instruments.
A tuba CAN play a melody of course, and on occasion does, but, ALL Tuba melody is not for most people except Tuba fanatics! Ditto for bass, though Marcus Miller makes me a liar!!
We are talking about music here, not left brain logical things. Music is ambiguous, it is not 90 degree angles, but is subtle; so when I say essentially roots, I do not mean 100% of the time, though that has been known to happen in certain bands.
Ask yourself this which is 100 times easier to imagine, a bass player playing mostly root fifth ALL NIGHT, or ANY OTHER INSTRUMENT , guitar, sax, trumpet, etc.
That should help anyone who still has doubts.
The thread is about a good bass player, and I was not just addressing higher level players but all kinds of players who might see this thread.
I think bass playing like most highly involved disciplines, can be divided into stages and playing roots is an early stage, but even in later stages, the root is still IT for a bass player, except that he is more artful, more creative about it.
I am learning Latin bass style right now. I played in a Latin band decades ago, but had to read every single note. The man who wrote those notes was a gifted bass player himself, and the vast majority of those notes were root fifth. That is just one example. I invite others to join in with musical examples.
For context... please understand that I admire those bass players who excel at root fifth AND being highly creative about it, AND who solo... MArcus, Jamerson, Stanley, Paul Chambers, Mingus, Jaco, Holland, etc etc