Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:G
['B2 B2', 'B,2 D2 D>B,C>D C2 E2 E2 A>G', '(3FAd f2', 'B2 (3dcB']  
X:1
L:1/8
M:4/4
K:G
|: (3DGA | B2 B2 B>AG>E | D2 D2 D>B,D>G | F2 F2 F>Dd>c | B2 B2 A2 (3DGA | B2 B2 B>AG>E | 
 D2 D2 D>B,D>G | F2 F2 F>Dd>F | G2 B2 G2 :: D>C | B,2 D2 D>B,C>D | C2 E2 E2 A>G | F2 d2 d>cA>F | 
 G2 E2 D2 (3EDC | B,2 D2 D>B,C>D | C2 E2 E2 A>G | F2 d2 d>cA>F | G2 B2 G2 ::[K:D] (3FAd | 
 f2 f2 f>ed>B | A2 A2 A>FA>d | c2 c2 c>Ac>a | f2 f2 e2 (3FAd | f2 (3fff f>ed>B | (3AAA A>B A>FA>d | 
 (3ccc (3ccc c>A (3cde | d2 f2 d2 :: A>G | F3 A A>DF>A | G2 B2 B2 (3dcB | A3 c c>Ac>a | 
 f2 g>f e2 A>G | F>A (3AAA A>D (3FGA | G>B (3BBB B2 (3dcB | A>ce>f (3gfe c>d | (3efe d2 d2 :|  