Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:6/8
K:D
['F2 A A2 d B>dA', 'A3 f>ef g2 g a>ga b3 B2']  
X:1
L:1/8
M:6/8
K:D
|: F2 A A2 d | B>dA B3 | A>Bd d2 e | f2 g a3 | F2 A A2 d | B>dA B>dg | f<ag{g} f2 e | d<BA A3 :: 
 f>ef g2 g | a>ga b3 | B2 e e>fg | fed d2 c | FGA A2 d | B>dA B>dg | f<ba g<fe | dBA A3 :|  