Create a musical composition that adheres to the provided structure and theme.
X:1
L:1/8
Q:1/8=120
M:2/4
K:D
['a2 af/a/ ba fa', 'f>e fe dc BA'  
X:1
L:1/8
Q:1/8=120
M:2/4
K:D
 f | a2 af/a/ | ba fa | g2 Bc | ed c/B/A | a2 af/a/ | ba fa | ga/g/ Bc | ed d :| e | f>e fe | 
 dc BA | g>f fa | ba f/g/a | f>e fe | dc BA | ga/g/ Bc | ed d :|  