\version "2.12.2" % and 2.18.2
#(set-default-paper-size "letter")
\paper { bottom-margin = 14\mm }

\header {
  title = "Dummm-Deedle-Dee-Deeee, Deedle Dum-Bum"
  composer = "chri d. d."
  arranger = "Yesterday, January 10th, 2002"
}

melodya = \transpose c c' {
  <c e> <d f> <e g~> <c g> |
  <d f> e <d f> c |
  <e g> <d f> <c e> <e g> |
  <d f> <c e> <d f> <e~ g~> |
  <e g> <d f> <c e>2 |
  <d f>4 <e g> <d f> <c e> |
  <c e> \times 2/3 { f8 <c e> <d f> } <e g>2 |
  d4 e f <c e>4 |
  g \times 2/3 {f8 e d} c4 g-4 |
  a g f c |
  e \times 2/3 {d8 e d} e4 c |
  \clef treble
  bes a bes gis
}

harmonya = {
  \repeat "unfold" 5 {c4 ~ | c \times 2/3 {f8 e d} g2 | d4 e f }
  c4~ c \times 2/3 {f8 e d} g2 |
  \clef treble
  d'4 e' f' c'~
}

right = {
  \clef treble
  \tempo "Deedle-de-de-ly" 4=120
  \partial 4
  
  r4 |
  \melodya
  \key aes \major
  \ottava #1
  \transpose c c' {
    c''2 as'4 es'' |
    c'' as' es''2 |
    c''4 as'2 es''4 |
    c'' as' es'' c'' as' es'' c'' as' |
    es''2 as'2 c''4 e' gis' b' |
    
    \key e \major
    <e' gis'>2 <fis' a'> |
    gis'4 e' fis'4. a'8 |
    b'4 e' a' fis' |
    gis'2 fis'4 a' |
    e' b' fis'-1 cis''-4 |
    e''1 c''1
  }
  \key c \major
  \transpose c c'' {
    \melodya
  }
  \ottava #1
  \transpose c c''' {
    <c f a>2 <c e g>
  }
  \bar "|."
}

left = {
  \clef bass
  \partial 4
  
  \harmonya
  
  \repeat "unfold" 6 {c'4 aes' c'' aes'8 es'}
  c'4 r4 r2 |
  
  \repeat "unfold" 6 {e'4. gis'8 a'4 fis' |}
  r4 e' d'
  
  \transpose c c' \harmonya
  c''4 \times 2/3 {f''8 e'' d''} c''2
}

\score {
  \new PianoStaff <<
    \new Staff \right
    \new Staff \left
  >>
  \layout {} \midi {}
}