Tone woods and Solid Guitars. Debate settled, scientifically.
Alder (Alnus rubra):
Alder is used extensively for bodies because of its lighter weight (about four pounds for a Strat® body) and its full sound. Its closed grain makes this wood easy to finish. Alder's natural color is a light tan with little or no distinct grain lines. It looks good with a sunburst or a solid color finish. Because of its fine characteristics and lower price, Alder is our most popular wood and it grows all around us here in Washington State. The tone is reputed to be most balanced with equal doses of lows, mids and highs. Alder has been the mainstay for Fender bodies for many years and its characteristic tone has been a part of some of the most enduring pieces of modern day contemporary music.
(Acer saccharum-Hard Maple):
We offer two types of Maple: Eastern Hard Maple (hard rock maple) and Western Soft Maple (big leaf maple).
Hard Maple is a very hard, heavy and dense wood. This is the same wood that we use on our necks. The grain is closed and very easy to finish. The tone is very bright with long sustain and a lot of bite. This wood cannot be dyed. It looks great with clear or transparent color finishes.
Western Maple grows all around us here in Washington state. It is usually much lighter weight than Hard Maple but it features the same white color. It has bright tone with good bite and attack, but is not brittle like the harder woods can be. Our flame (fiddle-back) and quilted bodies are Western Maple. This type of maple works great with dye finishes.
Some further papers I have since read on this subject getting to the point of QED.