Create a musical composition using the given alphabet-based notation and supplied motif.
X:1
L:1/8
Q:1/2=60
M:2/2
K:G
['gbag fedc BdgB', 'BG (B/c/d) (e/f/g) (B/c/d) (c/d/e)', 'BG A/B/c/A/']  
X:1
L:1/8
Q:1/2=60
M:2/2
K:G
 gbag fedc | BdgB A/A/A e2 | gbag fedc | BdgB G/G/G G2 :: c | BG (B/c/d) (e/f/g) (B/c/d) | 
 (c/d/e) (B/c/d) cAAc | BG (B/c/d) (e/f/g) (B/c/d) | (c/d/e) (A/B/c) BGG :: c | 
 BG A/B/c/A/ BG A/B/c/A/ | BGBd gAAc | BG B/c/d/B/ gd B/c/d/B/ | cAdB G/G/G G :|  