Hi! im in the search of a 70`s Fender Jazz Bass, which is my dream bass and now i have the money to get one. I used to have an 77` which i was stolen.... it was red and heavy.... so i assume is alder, right? So which is the difference between Alder and Ash? sound-wise and weight-wise. Also, what is the criteria used to select the wood? just the finish? (natural or sunburst ash, others alder???) Thanks for any input!!!