The problem is that good bass players are 2nd on the "Hardest To Find" list.
Well when I was in high school concert band the fellow down the street
was studying concert bass, yes the big, big standup bass.
He taught me bass guitar, I was dating his sister.
I'm sure he'd tune his fifth string just like the other four, just an extra string.
But, more importantly, it's all dynamics. When to play soft when to play loud,
when to play fast when to play slow, when to run up to a higher octave and when
not to. Also, find a good bass player and imitate him, like Peter Cetera (Chicago).
They where all from DePaul where Terry Kath was from.
He'd never play an EB-0, but I had a bass amp with an 18 inch speaker. 100 watts.
I struggled reading bass cleff but could usually pick out scales from songs I heard
and play by ear. If I could read bass cleff I might've played longer as the technicals
he taught me were quite excellent.
So read bass cleff, pick a bass player to imitate, use them dynamics, etc..
Remember, bass is not a lead instrument, so any solo you play should only
be 4 to 8 measures. And play a solo once a night.
Plus it's good practice if you ever want to play 6 string.
My humble experience as I trust there are some music school students
in this thread.