@robin 
Thanks I haven’t seen this before and only have his mandolin book. For a first build I would stick with Marks course and it will be a good guitar. Tap tuning is fairly advanced.

It certainly was not my intention to send you ‘doon a wabbit ‘ole’. I am sure that you will make a good sounding guitar whatever route you choose. After all, best results are based on guidance as well as experience. …   Read more»

@rocknroller912  @peter-c @markbailey This is an extract from the book ( ‘The Art of Tap Tuning’ by Roger H. Siminoff ) these are suggested target notes (not definitive) for the braces with the soundboard/backboard edge secured in a frame.  The…   Read more»