Develop harmonious chord sequences that enhance the given music composition.
|: GABG FGAF | EFGE D4 | EFGE D2 GA | B2 B2 cBAB | GABG FGAF | 
 EFGE D4 | EFGE D2 GA | BGAG- G4 :: B2 eB d e3 | edBA BAGE | B2 eB d e3 | 
 edBA B4 | (3Bde gb aged | (3^ABd (3ABd B=AGE | DEBA GDED | 
 BGAG- G4 :|  
X:1
L:1/8
M:4/4
K:G
|:"G" GABG"D" FGAF |"C" EFGE"G" D4 |"C" EFGE"G" D2 GA |"Em" B2 B2"D" cBAB |"G" GABG"D" FGAF | 
"C" EFGE"G" D4 |"C" EFGE"G" D2 GA | BG"D"AG-"G" G4 ::"Em" B2 eB d e3 | edBA BAGE | B2 eB d e3 | 
 edBA"B7" B4 |"Em" (3Bde gb aged |"B7" (3^ABd (3ABd"Em" B=AGE |"G" DEBA"C" GDED | 
"G" BG"D"AG-"G" G4 :|  