Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:G
['B2 d2 (cBAG) d>c (B/c/d){E} D2 D', '(de).d.c{cd} cB{AB} AG']  
X:1
L:1/8
M:4/4
K:G
 B2 d2 (cBAG) | d>c (B/c/d){E} D2 D z | (C/D/E) DC B,DGD |{D} CB,{B,} CG, A,2 A, z | 
 Bd{d}cB{B} AGAF | GBAG{EF} E(DE)G | dBAG (EF/G/) (DC) | B,2 A,2 G,4 || | (de).d.c{cd} cB{AB} AG | 
 (de).d.c{cd} cB{AB} AG | (Bdgd) (edcB) | (cBAG) A2 A z | (B/c/d) (cB) (AG)AF | 
{A} G/F/G/A/ BG{EF} E(D/E/) G2 | dBAG (E/F/G) DC | B,2 A,2 G,4 |]  