Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:4/4
K:Dmin
['GA B2', 'B2 GA B2'  
X:1
L:1/8
M:4/4
K:Dmin
|: D2 GA B2 GA | B2 AG F4 | D2 GA B2 AB | B2 A2 G4 :: B2 GA B2 GA | B2 c2 A4 | B2 GA B2 GA | 
 B2 A2 G4 :|  