i never claimed to know "so much about music"
Therefore, the smartest thing would be listen and learn.
i merely stated some information i gleaned from a source (
www.studybass.com) which had been
recommended to me by what i consider to be
a reliable source (other members of this website).
Those marketing people have been promoting and selling the Baby Einstein toys, but still no new Einsteins.
What's more, with all those computers, videos, special toys, iphones, etc..., the average educational level of students is going down. Why?
In short, if you want to be a kardashian when you grow up, don't learn music theory.
If you want to play golf, don't learn music theory.
If somebody left you an old bass guitar and you don't know what to do with it, don't learn music theory.
I'm not a teacher/educator; therefore, my answers are not very diplomatic.
Knowing music theory helps even un-gifted and un-talented musicians like me to be around good musicians without looking "stupid" (it still happens), create some mediocre compositions, and even participate in the music theory discussions at TB.
For talented musicians, music theory/harmony/etc... is like a rocket buster that catapults them into a completely new orbit, where their talents can really blossom.
My advice. (Samo-samo)
Get a (free) music production software.
Get an old (from a pawn shop) Yamaha PSR keyboard.
Get some (easy) music theory book for the beginning piano players.
Divide your precious time into three sections:
N.B. LEARNING IS A LIFE TIME JOURNEY. DON'T RUSH.
1. Learn how to program the music software. (At the beginning only)
2. Learn harmony/chords on the keyboard (Aural environment).
It is very important to hear the chords/harmony.
3. Transfer that learned music theory knowledge on the bass guitar. Don't get any bass tutorials first. Try to use your brain power and play those notes/scales/chords on the bass fretboard.
When you and your brain are comfortable about the bass fretboard, then get bass guitar books and start learning specifics.
Within a few months, you should be able to know about the chords, aurally discern them, play scales and various chords on the bass.
Any PSR keyboard or music production software has some kind of
metronome or some other timing device.
Music software will help to properly "calibrate" the note's length.
Music software will help you to properly "calibrate" tuplets -
"any rhythm that involves dividing the beat into a different number of equal subdivisions from that usually permitted by the time-signature."
Start playing those notes, scales, tuplets, or any rhythmic patterns with the metronome or other timing devices.
What's more, with the help of the music production software, you'll be able to start recording your own musical thoughts and ideas.
The software will help you with music notation.
It's important to know how to communicate your musical ideas to other musicians, and also knowing standard music notation would allow you to read other musicians' thoughts via note sheets.
Also, knowing how to program sequencer would help you to practice/exercise "cover" tunes as well.
You can even try to program some polyrhythmic stuff.
It's just a beginning, don't rush and be patient.