<html> <body> John, I too took that course.  Hang around here and you will learn a lot more.  Join the guild and attend meetings and regional conferences and it will happen faster. As for  fourths and fifths versus thirds and sixths: use the first to rough in your temperament and follow with the latter to refine it.  Think of setting the temperament as a multi pass endeavor where the quality improves each time.  Getting it perfect the first pass doesn't work well and is a waste of time. A book to get from the guild is "On Pitch" by Rick Baldassin.  It is foundational to an understanding of what it is you are doing and how to become expert at it.  The course is inadequate on this topic (in the form I had it) and Reblitz's book is not comprehensive on each topic it covers.  Not to put it down, just to acknowledge that there are space constraints when writing a book that covers just about everything about pianos. ;-) Diane Hofsteter worked to develop a set of ear-caps (as opposed to plugs) that are ideal for our work.  Her address on my 'cap' box is dpno2ur@yahoo.com or 360-699-1626  She moved recently; I think this is the new address.  If anyone knows better, speak up. Andrew At 11:50 AM 8/11/2005, you wrote: <blockquote type=cite class=cite cite="">Hi all:   First post, hope I’m doing it right!   I’ve recently embarked on tuning/tech for a couple of reasons:  1) possible second career (don’t want to cut into anyone’s business, but al= l the tuners around here seem to be, shall we say, “advanced”), and 2) someone gave me an old Cable Euphonamaybe I can get her going in 15 or 20 years!    Anyway, as all newbies, I have a “couple” of questions.  First, I= ’m learning through the American School of Piano Tuning’s correspondence course.  Also wearing out the Reblitz.  Is there any consensus on “fourths and fifths” vs “sixths and thirds”?  Pro’s and Con’s?   Second, I have slight tinnitusit’s always seemed to make me extra-sensitive to any instrument that’s out of tune (pretty bad for an Episcopalian bass who usually gets seated right in front of the ORGAN PIPES!).  I was in band all through school, played guitar for years, piano for about thirty years, so I have tuned a thing or two.  Other people will say something is in tune, but it grates on my nerves!  Any other tuners out there afflicted (blessed?) with this?   Thank ahead for any input!   John Delmore</blockquote></body> </html>