I bore 5 to 11 degrees for the bass, keeping the 5 degree angle for at least the first six to nine notes. 79 to 90 (11 to 0) degrees in the tenor (to about note 52) initially grouping hammers in threes for the 11, 10, 9 degrees and groups of two from there to 52 (or more groups of three depending on compass). Above that is 90 degrees. -- Regards, Jon Page
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