haha.
I kind of agree. Wouldn't it be better to transcribe and then, by recognizing the intervals and tonality, understand the key center - whatever it may be?
I think it's just better to learn the scales, modes and pentatonics. Becoming very familiar with them is "just a matter" of taking any given diatonic pattern and taking it through all the possible permutations.
When you play a pattern, say like a 2 note diatonic pattern (broken 3rds) or a 4 note diatonic pattern (steps of 4), there are 8 possible permutations based on the fact that you are either ascending or descending notes in the pattern while at the same time, either ascending or descending the chords (or strings, if you will) of the scale you are working on. So you pick say five patterns and you take each of them through the 8 permutations. But wait there's more. You have to do this for each mode. Do the math. It's a lot of work. The interesting thing is that after a couple years of this, you'll be able to hear nearly any bassline and pretty much know what's going on with it, within a few seconds. What all this does really is teach you to solo on the bass, but more importantly, I think it teaches you to get around the fretboard
People say they don't want to sound like a pattern player but if you actually engrain the patterns, (which was good enough for Coltrane, Miller, and nearly any jazz guy) it just starts to show up in your playing. It won't sound like a pattern. It will sound like music.
I'm not there yet as I haven't been playing that long (about a year and a half), but I can hear basslines pretty easily and can learn songs fast with no tabs. Just my ears. I've been told that I play very well for such a short time, and I have just had very good instruction and I do what he says. And I practice a lot. A whole lot...
Then I think transcribing will make more sense because you will have built a foundation to work from. My opinion, anyway...