Changing Tuning

[Omer Katzir]

I still couldn't really find how to change tuning, I did managed to change for french lute tabs, but it's in guitar tuning and six strings. works great but I need 10 strings, or at least 7) 

this is my code so far, I will be happy to get help. 

Thank You,

Omer Katzir

The Silent Troubadour - Http://omerkatzir.com

\version "2.18.2"

\header {

...

}

global = {

\key f \major

\time 4/4

}

upper = \relative c'{

\global

\voiceOne

 

notes 

}

lower = \relative c {

\global

\voiceTwo

notes

}

\score {

<<

\new StaffGroup = "tab with traditional" <<

\new Staff = "guitar traditional" <<

\clef "treble_8"

\context Voice = "upper" \upper

\context Voice = "lower" \lower

>>

\new TabStaff = "guitar tab" <<

\set TabStaff.tablatureFormat = #fret-letter-tablature-format

\context TabVoice = "upper" \upper

\context TabVoice = "lower" \lower

>>

>>

>>

}

\layout { }