Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Amix
['cAec dBgB', 'B/B/B gB']  
X:1
L:1/8
M:4/4
K:Amix
 d | cAec dBgB | cAec A/A/A ae | cAec dBgB | cA A/A/A Tf2 e :: (f/g/ | a/g/f/e/) ca B/B/B gB | 
 (a/g/f/e/ a)e Tf2 e(f/g/ | a)efc B/B/B gB | cA A/A/A Tf2 e :|  