chord names in piano staff

[henrik pantle]

hi,

i wonder where to find the solution for my problem.
i guess a lot of others do too.

i want the chord names above the piano staff:

        
guitarChords = \chordmode { c1 | c | c | c | f | f | c | c | g | f | c | g }

upper = \relative c' { 
                \clef treble 
                \key c \major 
                \time 4/4

                r1 | r1 | r1 | r1 | \break
                r1 | r1 | r1 | r1 | \break
                r1 | r1 | r1 | r1  \bar "|." 
                
}


lower = \relative c, { 
                \clef bass 
                \key c \major 
                \time 4/4 

                c4-5 e-3 g-2 a-1 | b-3 a-1 g-2 e-3 | c4 e g a | b4 a g e | 
                
                f4 a c d | es4 d c a | c,4 e g a | b4 a g e |
                
                g4 h d e |  f4 a c d | c e f fis | f e c b