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There is certainly a difference in feel, or mood for different keys on the guitar. Open strings sound different from fretted strings, and some keys use more open strings than others. The placement of the frets is a compromise, so that the notes are not all separated by equal intervals in different keys. So it seems natural that different keys wold have different feelings/moods/emotions.

I am surprised to find that the same difference across keys is true on keyboard as well. On my electronic boards, the distance between notes should be exactly uniform, and yet there is a big difference in the way D major affects me vs the way Bb affects me. Dont know how to explain it, but the effect is unmistakable.

I am going to look up those composer comments that Mac talked about...


...(congratulating self on grammatical use of 'same difference' in the 2d paragraph)

Flatfoot sez: Call me when 'Talent-in-a-Box' is ready to ship! -- [8{>

Got some tunes on You Tube:
http://www.youtube.com/user/flatfoot50
.
My BiaB lesson site:
http://jdwolfe0.wixsite.com/learnbiab