Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:4/4
K:D
['BABd e2 de', 'B3 a2 af a2 a/a/a fe-ef a2-'  
X:1
L:1/8
M:4/4
K:D
 AFDF A3 A | BABd e2 de | fedf e2 fe | dfed B2 dB | AFDF AA-AA | BABd e2 de | fe d2- de fe | 
 d2 dc B3 :| a2 af a2 a/a/a | fe-ef a2- ad | faaf e2 fe | dfed B3 f | affg a2 ad | feef a2 ag | 
 faaf e/e/e fe | d2 dc d3 :|  