I know what I like when I play it, yet I would like to understand why many/most basses are made of alder or ash and what the difference is. If you would, while I've played professionally at a very high end for a decade or more 40+ years ago, and now work semi-professionally, I have no knowledge of woods, construction (other than bolt on vs neck through), whatever. So, I'd appreciate at the start of this thread if you don't make assumptions just because I've been playing for a long time. This is just an idle curiosity issue for me as I use what I like. FYI, about 1/2 of my basses are Fender American. The other half range from Ric, to Aria, to Ibanez, and so on. Basses are as early as 1974 and as recent as 2015. I'm the original owner on almost all. I do also have two MIM Fenders. Thanks!