Kingma system quarter-tone flute

A practical system for complete quarter-tone scales:

http://www.kingmaflutes.com/CMS/index.php?module=article&view=4&MMN_posi\
tion=57:57
<http://www.kingmaflutes.com/CMS/index.php?module=article&view=4&MMN_pos\
ition=57:57>

also:

www.brannenflutes.com/kingma.html
<http://www.brannenflutes.com/kingma.html>

best,

jls

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