Hi all,

I am a singer who plays guitar, not a guitarist's guitarist -- I know next to nothing about how a guitar works, but I have played for thirty-five years. Recently, in the recording studio, my engineer told me I didn't know how to tune, and since then I've had trouble tuning. Among the things he criticized me for were tuning with a capo in place.

Some facts:

I play an old Harmony.
I use Martin light-gauge strings
I frequently play capoed up to fifth, seventh and ninth frets because I like the way my guitar sounds capoed there.
I changed my strings on the Tuesday before the Saturday recording session.

Some opinions:

I have a pretty good ear, sing in tune, can hear pitch differences -- I've asked some professional musicians I know if I usually play out of tune and they've said "No."

BUT, since this session, what I notice, is that when I pluck a string I can hear the pitch wobble, as though the string is sounding a note, a note about a half-step lower, and then the original note again. This makes it very hard to tune because I no longer hear a constant pitch from the string.

Please don't tell me not to capo high. I'd appreciate any other thoughts and suggestions, including references to previous threads

Thanks for your help.