Mix of Chordnames and Notes

[Robert Schmaus]

Dear LilyPond fellows,

I'm writing a score for Bigband, which means there are arranged parts as 
well as improvised sequences. In the improvised sequences, one normally 
only provides the chord symbols.
What I have found is a \chord{ } command which produces the chord 
symbols underneath the staff. (However, that command is missing in the 
index of the "complete" LilyPond Syntax manual - does that mean that 
this command is actually deprecated?)

What I'm looking for is a way to have that chord symbol pulled up into 
the staff. In particular, in the full score the chord symbol appears not 
under the staff where it appears, but under *all* staffs.
So, what I really would like is, that, in the following example, the 
chord symbols appear in the 1st and the 3rd staff, either centered in 
the middle or placed at relative height to where the full bar rest is.


\version "2.14.1"
<<
        \new Staff \relative c'' {
                c c c c
                R1
                \chords { d1:m7 b1:min7.5- }
        }       
        \new Staff \relative c'' { e1 e e e }
        \new Staff \relative c' {
                g4 g g g
                R1
                \chords { d1:m7 b1:min7.5- }
        }       
>>


Anyone know of an easy solution to this?

Thanks in advance!
Robert