scale = \relative { c'8 d ees f g aes bes c }

melody = { \scale \key c \minor \scale }
harmony = \chordmode { c1:m7 }

song = <<
  \new ChordNames \harmony
  \new Staff      \melody
>>

\transpose c c { \song }
\transpose c cis { \song }
\transpose c des { \song }
\transpose c d { \song }
\transpose c dis { \song }
\transpose c ees { \song }
\transpose c e { \song }
\transpose c fes { \song }
\transpose c eis { \song }
\transpose c f { \song }
\transpose c fis { \song }
\transpose c ges { \song }
\transpose c g { \song }
\transpose c gis { \song }
\transpose c aes { \song }
\transpose c a { \song }
\transpose c ais { \song }
\transpose c bes { \song }
\transpose c b { \song }
\transpose c ces' { \song }
\transpose c bis { \song }
\transpose c c' { \song }