Craft a musical work adhering to the specified theme and structure.
X:1
L:1/16
Q:1/4=60
M:2/4
K:none
['G2=Bc d2d2 d2>f2 _e2dc z d2f _e2dc', 'dcB_A =B2c2'  
X:1
L:1/16
Q:1/4=60
M:2/4
K:none
|:"G" G2=Bc d2d2 | d2>f2 _e2dc | z d2f _e2dc |"Cm" _edc=B c4 ::"G" =Bcd_e dcB_A | =Bcd_e dcB_A | 
"G" G2>_A2"Fm" =B2c2 | =B_AAG"G" G4 :|  