I live in New England, meaning that I have no idea what a consistent climate is. In the past week the weather has gone from sunny, hot and dry to humid, muggy and grey. My bedroom is pretty warm and well-insulated so I often have the fan going and the window open. My bass, a 2001 Musicman Stingray, spends most of its' time in my room, which is usually warm, but is now cool and moist because of the fan and open window. The bass has been suffering over the past few days because of this. It won't stay in tune (especially in the upper frets) and I consistently get buzz in the lower notes, even when I try to sound the harmonic at the fifth fret of the G string! I've tried setting the bass up and adjusting the truss rod, but it just won't stay in tune anymore! Any suggestions?