Re: Wood density to Tonal Characteristics?
Here's what I've learned from experience and from bugging luthiers over the years.
Heavier (ergo denser) woods tend to sound brighter and harder through the midrange than lighter, less dense woods. Basically, here's what happens:
A guitar string, when plucked, will ring out with a full complement of the frequencies it is capable of. Once plucked, the string then interacts with the guitar, and the wood and hardware of the guitar will allow some frequencies to resonate and will stop others from resonating, depending on what the guitar is built from.
So why do heavy guitars sound bright and light guitars sound warm?
-Denser woods 'sound brighter' because high frequencies resonate with greater ease than lower frequencies, which have trouble negotiating through the dense wood. As a result, guitars that use a lot of dense wood only really help high frequencies get through.
Contrastingly, lower frequencies are damped less by woods that are less dense, hence 'warmer' tone.
Of course, some willl ask 'what about Les Pauls?' -well, the answer there is that the maple top is offset with a very thick mahogany back and neck with a rosewood fingerboard. That helps even out the tonal spectrum. Don't forget that humbuckers and the shorter scale length help round out the tone, too. It's also worth noting that Les Pauls without Maple caps sound fatter, and that the best Les Pauls (standards from 58-60) were made from very light honduras mahogany.