Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:2/4
K:A
['A2 BA/B/ cA', 'ag/a/ ba', 'fe cB/c/ eA cB BE A2 BA/B/']  
X:1
L:1/8
M:2/4
K:A
|: E | A2 BA/B/ | cA A>B | ce ae | f/a/f/e/ cB | A2 BA/B/ | cA A>F | EF A/B/c/A/ |1 BA A :|2 
 BA A2 || ag/a/ ba | fa fe | cB/c/ eA | cB B2 | ag/a/ ba | fa fe | Ac e/f/e/c/ | BA A2 || 
 ag/a/ ba | fa fe | cB/c/ eA | cB BE | A2 BA/B/ | cA A>F | EF A/B/c/A/ | BA A ||  