Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:6/8
K:F
['A2 F F2 F A2 B c>BA', 'd>cB A2 F F2 F f2 f']  
X:1
L:1/8
M:6/8
K:F
|: A2 F F2 F | A2 B c>BA | B2 G G2 G | B2 c d>cB || A2 F F2 F | f2 f e>dc | B2 G G2 G | 
 g2 f e>dc :|  