Craft a musical composition that adheres to the specified musical theme and letter-based structure.
X:1
L:1/8
M:6/8
K:A
['c2 A (F>EF) E3 (EFA) B2', 'f2 e edc']  
X:1
L:1/8
M:6/8
K:A
 e | c2 A (F>EF) | E3 (EFA) | B2 B (BAF) | (ABc) (d2 e) | c2 A (F>EF) | E3 (EFA) | B2 d c2 B | 
 BAA A2 || | c | e2 c A2 c | d3 d2 c | (d2 e) f2 e | edc B2 c | f2 e edc | B3 c2 B | BAF F2 E | 
 EFA !fermata!B2 e | c2 A (F>EF) | E3 (EFA) | B2 d c2 B | BAA A2 ||  