Construct a musical composition based on the provided framework and stylistic instructions.
Only One Section  
X:1
L:1/8
M:2/4
K:A
 b3/2 b/ b2 | e' b a f | ^d e f =d | B4 | b3/2 b/ b2 | e' b a f | ^d e f2 | e4 |]  