Produce a musical arrangement that complies with the dictated structure and the suggested theme.
X:1
L:1/8
M:4/4
K:D
['B2 dA', 'd2 Bd'  
X:1
L:1/8
M:4/4
K:D
 FA | B2 dA BAFA | B2 dA BAFB | AF F2 DF F2 | BAdA BAFA | B2 dA BAFA | B2 dA BAFB | A3 B defd | 
 edef d2 :| Bd | e3 f d2 Bd | edef dB A2 | e3 f d2 Bd | edef dB A2 | e2 df eB B2 | af f2 defg | 
 afbf afdf | edef d2 :|  