learning to take guitars, basses, pedals and amps apart...how the wiring in them work...how to customize or add on im my own creative way. surely people that gut their basses and turn them into their dream insturment (all by themselves) learnt how to do so from someone...or somewhere.. i love playing bass..and im still trying to find my sound. but i am starting to become very interested in the actually engineering of the instrument..not only the sound. any advice on where i can learn about this kind of stuff? workshops? classes? books?