Construct a melodic structure using the supplied chord sequence.
'G', 'C', 'D7', 'G', 'Am', 'D7', 'G', 'D', 'A7', 'D', 'Em', 'A7', 'D', 'C', 'F', 'G7', 'C', 'F', 'G7', 'F ED |'  
X:1
L:1/8
M:2/4
K:none
[K:G]"G""_?" B,D DD |"C" DE EE |"D7" DF AF |"G" GB D2 | B,D DD |"Am" CE EE |"D7" DF AF | 
"G" GG G z ::[K:D]"D" AF F/E/F |"A7" GE E2 | GE/F/ GB |"D" BA A2 | AF FE/F/ |"Em" GE E2 | 
"A7" EG EC |"D" DD D"_>Teil A" z ::[K:C]"C" E2 G>E |"F""_f" FA A2 |"G7" GB dB |"C""_c" cG/A/ G2 | 
 E2 G>E |"F""_f" FA A2 |"G7" G>"_f"F ED |"C""_?" CC C z :|  