Craft a musical work adhering to the specified theme and structure.
X:1
L:1/8
Q:1/8=120
M:2/2
K:G
['b2 ag'  
X:1
L:1/8
Q:1/8=120
M:2/2
K:G
"G" G2 Bd gdBd |"C" cBAB cedc |"G" BGAF GBdg |"C" ecAF"D" GFED |"G" G2 Bd gdBd |"C" cBAB cedc | 
"G" BGAF GBdg |"D" ecAF"G" G2 z2 ::"G" b2 ag b2 ag |"C" egdg egdg |"G" b2 ag b2 ag | 
"C" egfa"D" gfga |"G" bgag bgag |"C" egdg egdg |"G" bgaf gfed |"D" egfa"G" gedB :|  