Create a musical composition using the given alphabet-based notation and supplied motif.
X:1
L:1/8
M:2/4
K:G
['B/G/B/G/ c/A/c/A/ dd B>g', 'G/G/G/B/ dd G/G/G/B/ de/d/ dc cd/c/', 'gf eG ce', 'AB/A/ AG G2 d/d/d/G/ BB d/d/d/G/ Bc/B/']  
X:1
L:1/8
M:2/4
K:G
 G | B/G/B/G/ c/A/c/A/ | dd B>g | f>edc | e/d/B/d/ G2 | B/G/B/G/ c/A/c/A/ | dd B>g | 
 f/g/f/e/ d/c/B/A/ | GBG :: B | G/G/G/B/ dd | G/G/G/B/ de/d/ | dc cd/c/ | cB B2 | G/G/G/B/ dd | 
 G/G/G/B/ de/d/ | dc cd/c/ | BdB ::[K:C] z | ce gc' | b3 c' | b>a gf | eG ce | Gc eg | fG Bd |1 
 GB/d/ gf | eG ce :|2 GB/d/ gB | cec |:[K:G] G | d/d/d/G/ BB | d/d/d/G/ Bc/B/ | BA AB/A/ | AG G2 | 
 d/d/d/G/ BB | d/d/d/G/ Bc/B/ | BA AB/A/ | GBG :|  