I read material from several sources that some old school 7 string Jazz players would use a high A string (E-A-D-g-b-e-a) to extend the higher registers. Once 7 strings became more popular with non-Jazz players and solid body 7strings with 25.5" or greater scale lengths were being made, the addition of the low B string became the norm because at the longer scale lengths, the high A strings were now prone to breaking. This was something I was not aware of until I started doing research prior to buying my 7 string. There is a lot ouf interesting history of extended-ranger guitars.
Very interesting ! I've learned something today ! As you said the guitar was made for this tuning with a shorter scale, and like you said before, today the 7 strings guitars have longer scales. So I think it's not possible to tune the guitar with a high A without breaking it, not even Steve Vai !
Max, the person best known for using a EADGbea tuning is the late Jazz guitarist Lenny Breau. He played a custom made 7 string with a shorter scale (22.75") to keep the high A string from breaking. There are several videos of him playing on Youtube. Steve Vai also experimented with a high A string for awhile, but had problems with it breaking and went with a low B instead.
Craig, You are the first and only person I heard talking about adding a higher string on 7 strings guitar... What I read about old jazzmen tuning a 7 strings is to drop the 7th string low B to A, like I said... but there are no rules, every one is free to tune its guitar as wanted. I'm curious that you make me see a video of a guitarist playing with that tuning... (EADgbea)
I have never seen a higher string than high E, I am not sure that a so light gauge even exists... The seventh string is a low B in a standard 7 string tuning. Maybe you mean adding a low A string, or tune down the B to A, for Drop A... that's what i do. standard 6-string : EADGBE / Drop D : DADGBE standard 7-string : BEADGBE / Drop A : AEADGBE
A zombie apocalypse....an invasion of the undead....would be an improvement over the silence here now. Come on fellow 7 stringers. Speak your minds. I'm fairly new to 7 strings, so any input would be highly informative.