I can sight read treble clef very well. It's like I read treble clef at the college level and bass clef like a beginning first grader. I can look at a chart written in treble clef and find the notes comfortably, even on the bass, but when it comes to the bass clef I am sounding out the notes like a beginner. This is a huge gulf as I am 65 years old and have played treble clef instruments since I was 8 years old. I know the notes, but I can't stop translating. It's helpful when playing bass to be able to read lead sheets in treble clef, but there are times I'd like to be able to actually play a bass chart.
This must be something people who play other instruments (but not piano) struggle with when they learn the bass. I'm wondering how this can be overcome.
Maybe my problem is that I'm just learning notes and playing out of instruction books. Bass is not exactly a melody instrument, but I've ordered the Real Christmas Book in Bass Clef. Since I know most of the melodies maybe I can play through those songs a few times and get some reading practice trying to make associate playing with music that easily makes sense to me. It's like I "think" in treble clef and maybe with practice it will trip a switch and I'll be able to "think" in bass clef too.
Hello,
My 2 cts
When I started the bass a few years ago I learned bass clef (at that time I used Ed Friedland method to start up and the method teaches the bass clef) then I worked through theory stuff to understand what
MalcomAmos said and so on… traditional path, nothing original.
I discovered along my bass journey, and sometimes the hard way that for a bassist, a good understanding of theory, chord construction and so on is by far more useful than a good reading capability (having both is the ultimate situation

but i'm far from that).
Now I play in a jazz band and.. and everything is in treble key.
My personal experience is that :
- As strange as it can sound bass clef is not very useful for a bassist. It's good to have basic reading, but spending too much time on it is not a good investment. If you need to do this investment for some reason, using a method like Ed Friedland methods is a good way to learn the bass key in a bass playing situation.
- A good reading of treble key is highly useful on the other hand, because people you'll play with speak treble key not bass key. In fact, at least in the jazz world, everything , every body (but the pianist who uses boh) is in treble key...well to be honest in fact is even not in bass or treble key but in "chords sheet language". For example in real books the themes are written (and therfore need to be read) and usually most of them are quite simple. But the real work is with the chords sequence.
As a bassist you need to recognize chords and know how these chords translate in “bass neck language”.. but you’ll not have a lot of sheets in bass key to read, and when that’s happen (with a book for example) you will be in a “no hurry” situation, and have all the time you need to transfer your treble key knowledge and find you way in this bass key world.
It's only my personal xperience, ymwv
Luc