Build a composition using the stipulated musical framework and theme.
X:1
L:1/8
M:3/4
K:D
['BG B2', 'gA fA'  
X:1
L:1/8
M:3/4
K:D
|: A de | f2 gf ed | BG B2 dB | A2 fe dc | B2- Bg ga | fe d2 cd | BG B2 d/c/B | Ad fe dc | d2- d :: 
 e fg | a2 ba gf | gB g2 b/a/g | f2 gA fA | e2- ea ag | fa gA fA | ec A2 dB | A2 fe dc | d2- d :|  