These major scale exercises will build muscles in your hands to be effective at playing bass. Also building muscle memory as well as making playing bass become natural to you over time. Following and practicing the detailed instructions will build a solid foundation and the confidence to perform as a bass player. These techniques will create a uniform structure between the right and left hand while playing ensuring every note is fretted and plucked simultaneously creating the perfect note, this can only be produced through repetition its the little things that make the biggest impact on your goals as a bass player. Knowing the notes of these scales will familarize yourself with the fret like you need to be in order to reach your bass playing goals the familiarity of these notes and their position builds your ability to effectively determine what note will have the biggest impact to that paticular bass line giving the desired color of the phrase. The knowledge of music theory is a necessity to music composition it is not a requirement to create music because music is free and subjective to the listener or composer. Some musicians believe that theory can hinder a musician by thinking about what note should properly instead of what just sounds good to their ear now theory becomes a restriction. As long as you understand that music is free and the purpose of theory is to allow the communication of ideas to fellow musicians solely. Although we have been trained through the popular music as to what sounds right or wrong that we lose that freedom having to produce whats excepted by the popular majority to gain our following.