Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:4/4
K:Bb
['gabg f2 d2', 'cAFA cdec dBfd b2 f2'  
X:1
L:1/8
M:4/4
K:Bb
 (fd)Bd (fd)Bd | gabg f2 d2 | egce dfBd | GccB A2 F2 | fdBd fdBd | gabg f2 d2 | egge dffd | 
 ecBA B2 B2 :: cAFA cdec | dBfd b2 f2 | efge defd | GccB A2 F2 | cAFA cdec | dBfd b2 f2 | 
 efga bgc'b | gbge f2 f2!D.C.! ||  