Develop harmonious chord sequences to enhance the given tune.
fg/f/ ef/e/ | dF A>d | cE G>B | AD F2 | fg/f/ ef/e/ | dF A>d | 
 cE G>c | dd/c/ d z :: Ac/e/ a>g | ff/a/ df | ee/g/ ce | df/b/ a2 | 
 Ac/e/ a>g | ff/a/ df | ee/g/ ce | df d"_>Teil A" z :: Ag f>e | dd/F/ A>d | 
 cc/E/ G>c | dd/F/ A2 | Ag f>e | dd/F/ A>d | cc/E/ Gc | df d z :: 
 AF/A/ F/A/F/A/ | AG/A/ G/A/G/A/ | cG/A/ G/A/G/A/ | dF/A/ F/A/F/A/ | AF/A/ F/A/F/A/ | 
 AG/A/ G/A/G/A/ |1 AG/A/ G/A/G/A/ | df d z :|2 AG/A/ G/A/B/c/ | df d z |]  
X:1
L:1/8
M:2/4
K:D
"D" fg/f/"A7" ef/e/ |"D" dF A>d |"A7" cE G>B |"D" AD F2 | fg/f/"A7" ef/e/ |"D" dF A>d | 
"A7" cE G>c |"D" dd/c/ d z ::"A7" Ac/e/ a>g |"D" ff/a/ df |"A7" ee/g/ ce |"D" df/b/ a2 | 
"A7" Ac/e/ a>g |"D" ff/a/ df |"A7" ee/g/ ce |"D" df d"_>Teil A" z ::"A7" Ag f>e |"D" dd/F/ A>d | 
"A7" cc/E/ G>c |"D" dd/F/ A2 |"A7" Ag f>e |"D" dd/F/ A>d |"A7" cc/E/ Gc |"D" df d z :: 
"D" AF/A/ F/A/F/A/ |"A7" AG/A/ G/A/G/A/ | cG/A/ G/A/G/A/ |"D" dF/A/ F/A/F/A/ | AF/A/ F/A/F/A/ | 
"A7" AG/A/ G/A/G/A/ |1 AG/A/ G/A/G/A/ |"D" df d z :|2"A7" AG/A/ G/A/B/c/ |"D" df d z |]  