Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
Q:1/4=100
M:6/8
K:F
['A c2']  
X:1
L:1/8
Q:1/4=100
M:6/8
K:F
 A | c2 A c2 B | (A2 G) F2 G | A2 A G2 F | (G3 G2) A | c2 A c2 d | =B2 G c2 A | A2 G A2 =B | 
 (c3 c2) c | c2 c e2 d | c3 B2 B | A2 A d2 d | (G3 G2) A | c2 B A2 G | (F2 F) F2 G | A2 B G2 F | 
 (F3 F2) |]  