This is something that I have thought about because I see so many posts indicating that a lot of Bassists don't read music only tab.
My experience with the playing Bass is limited but I do play another instrument and I wanted to give my personal experience with reading music.
It is possible to learn to play without reading music. There are people out there who have learned by themselves and play well and it is not my intention to hold them in a lesser light. I have a friend who plays the piano and he was over about a month ago and after he played for a while I told him that he would expand his playing if he would learn more about the notation. I asked him if he knew what key he was playing in, he said "well I guess 'C', theres no black keys being used" I said "look at some music and start reading the sharps and flats" he looked at me and said "what do they look like" I was totally flabbergasted and didn't have the faintest idea of how to respond to the fact that he did not know what a sharp or flat looked like written down. Which brings me to here......
Written notation is the Picasso and Michaelangelo of the music world. Every note, slur, tie, bar line, measure, rit. forte tells us something that you will never get out of tab. These marks on paper are the brush strokes of composers that give meaning to what you are playing and there's more....try to see whats not written down. Look for the phrase ending, how does this phrase end and not only is this the end but it's also the start of the next section how is this played? Start putting shape to your music, music is always going somewhere, it's either beginning or ending. Each measure has something to say and it is up to you to convey it to the listener. The complete musician will never be satisfied with his or her performance. You can play a piece until you say "Oh thats nice I have this piece down" and next week, year go over it again and say to yourself "why didn't I see that before, I should have done this or that". You may please the crowd but you will never be satisfied and this is a good thing, you will always be striving to do better.
If you can't read music Get out there and start today, you will thank yourself down the line for the effort that you put forth.
My .02c your mileage may vary

My experience with the playing Bass is limited but I do play another instrument and I wanted to give my personal experience with reading music.
It is possible to learn to play without reading music. There are people out there who have learned by themselves and play well and it is not my intention to hold them in a lesser light. I have a friend who plays the piano and he was over about a month ago and after he played for a while I told him that he would expand his playing if he would learn more about the notation. I asked him if he knew what key he was playing in, he said "well I guess 'C', theres no black keys being used" I said "look at some music and start reading the sharps and flats" he looked at me and said "what do they look like" I was totally flabbergasted and didn't have the faintest idea of how to respond to the fact that he did not know what a sharp or flat looked like written down. Which brings me to here......
Written notation is the Picasso and Michaelangelo of the music world. Every note, slur, tie, bar line, measure, rit. forte tells us something that you will never get out of tab. These marks on paper are the brush strokes of composers that give meaning to what you are playing and there's more....try to see whats not written down. Look for the phrase ending, how does this phrase end and not only is this the end but it's also the start of the next section how is this played? Start putting shape to your music, music is always going somewhere, it's either beginning or ending. Each measure has something to say and it is up to you to convey it to the listener. The complete musician will never be satisfied with his or her performance. You can play a piece until you say "Oh thats nice I have this piece down" and next week, year go over it again and say to yourself "why didn't I see that before, I should have done this or that". You may please the crowd but you will never be satisfied and this is a good thing, you will always be striving to do better.
If you can't read music Get out there and start today, you will thank yourself down the line for the effort that you put forth.
My .02c your mileage may vary


LOL does something like that even exist... 