I'm wondering how the body resonance, specifically the soundboard resonances, change with humidity. As the wood absorbs water its mass increases and that should affect the resonance frequencies, so if a luthier carefullty tunes the resonance to be between notes at one level humidity, at different level the resonances may shift and coinside with notes. Can that happen?
Paulino Bernabe 'India' 2001
Takamine C136 and C128, Yamaha SLG200S silent, CompositeAcoustics steel-string, Fender Strat, Lineage MIDI