Let's simplify key signature from keynote and mode, the 
single-line table way. Memorize the line and you don't need
the table.

Key Sig.    Mode:  1     2     3     4     5     6     7
0 #/b:           FLyd  Cmaj  GMix  DDor  Amin  EPhr  BLoc

If you have a sharp keynote just sharpen all the notes in the
reference row and start from 7 sharps on the key signature.
If you have a flat keynote just flatten all the notes in the
reference row and start from 7 flats on the key signature.

Mode positions are fixed. Start with your keynote in the
reference row. Moving it n modes to the left adds n sharps to the
key signature (or subtracts n flats if key sig. is 7b). Moving it
n modes to the right adds n flats to the key signature (or
subtracts n sharps if key sig. is 7#).

That's all there is to it.

Bruce Olson
-- 
Roots of Folk: Old British Isles popular and folk songs, tunes, 
broadside ballads at my no-spam website - www.erols.com/olsonw 
or just <A href="http://www.erols.com/olsonw";> Click </a>

Motto: Keep at it; muddling through always works.
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