The first scale you need to learn on the bass guitar is the major scale. It’s a critical part of music theory and can be found in many different popular songs.
The major scale consists of a pattern of whole and half steps. The pattern is shown below:
root whole whole half whole whole whole half octave
Here is a C major scale tab
It’s pretty simple, and once you memorize the pattern you can play a major scale starting on any note you choose.
If you are curious to learn about scales, check out the wikipedia article on major and minor scales. I will do a followup article about minor scales fairly soon.
Any questions? Leave a comment below.