Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:12/8
K:Bdor
['D2 B, CB,A,', 'DCB, CB,A,'  
X:1
L:1/8
M:12/8
K:Bdor
|: B,2 B, B,^A,B, D3 DEF | E2 E EFE A3 F2 B | AFD DEF EDB, A,B,C |1 D2 B, CB,A, B,2 C D2 C ||2 
 D2 B, CB,A, B,3 B,C/D/F |: B2 B BAF A3 AGA | B3 BAF A3 F2 B | AFD DD/E/F EDB, A,2 C |1 
 DCB, CB,A, B,3 B,DF :|2 DCB, CB,A, B,2 C D2 C ||  