\version "2.17.26"

harmoniesA = \new ChordNames \chordmode {
  \set chordChanges = ##t
  \repeat unfold 6 ees8  \repeat unfold 2 bes8  |
  \repeat unfold 4 c8:m  \repeat unfold 4 aes8  |
  \repeat unfold 4 ees8  \repeat unfold 4 bes8  |
  \repeat unfold 8 ees8        |
} % harmoniesA


harmoniesB = \new ChordNames \chordmode {
  \set chordChanges = ##t
  \repeat tremolo 6 ees8  \repeat tremolo 2 bes8  |
  \repeat tremolo 4 c8:m  \repeat tremolo 4 aes8  |
  \repeat tremolo 4 ees8  \repeat tremolo 4 bes8  |
  \repeat tremolo 8 ees8        |
} % harmoniesB

melody = \new Staff \new Voice { R1*4 }

\score {
  <<
    \harmoniesA
    \melody
  >>
} % score


\score {
  <<
    \harmoniesB
    \melody
  >>
} % score