Develop a musical composition by utilizing the given alphabetic notation and supplied motif.
X:1
L:1/8
M:2/4
K:Amix
['A>B cB/A/', 'eA/A/ cB/A/']  
X:1
L:1/8
M:2/4
K:Amix
 e | A>B cB/A/ | ed/B/ G>B | A>B cB/A/ | a2 e>f | ga gf/e/ | d/c/B/A/ G>B | A>B c>e | d>B A :: 
 B/d/ | eA/A/ cB/A/ | ed/B/ GB/d/ | eA/A/ cB/A/ | a2 e>f | ga gf/e/ | d/c/B/A/ G>B | A>B c>e | 
 ed/B/ A ||  