To have a complete knowledge of the scale method, please acquire and assimilate the content of the following books for the solo guitar and bass guitar workshops.They are :- Bass by the major scale method;- Bass by the natural minor scale method;- Bass by the harmonic minor scale method;- Bass by the harmonic minor scale method;- Bass by the method of major pentatonic scales;- Bass by the method of minor pentatonic scales;- Bass by the method of minor semitone scales;- Bass by the half-tone scale method;- Bass by the half-tone scale method;