Can you give me 1 or 2 good running bass lines, or riffs that I can use in just about every slow song? Or better yet what is theory behind it? When I listen to bassists on cd I hear them hit maybe a IV and run off of that or something. I am getting bored with hitting just one note on slow songs and when I do a run it is just a chromatic, or a major up or down the scale to the next corrsponding note or to the octave. I want to get a general idea on where to start so when I am playing with the keyboard and he hits a half note I want to be able to run off of that note.