Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/8
M:4/4
K:A
['ec/B/ AB/c/', 'aA a/g/f/e/ fd/f/ ec/B/ AB/c/']  
X:1
L:1/8
M:4/4
K:A
 c/B/ | Ac/d/ (eA) (df){f} ec/B/ | AB/c/ (df){f} ec{c} Bc/B/ | Ac/d/ (ea) (df) ec/B/ | 
 AB/c/ (d/f/B/e/){d} c(AA) :: e |{g} aA a/g/f/e/ fd/f/ ec/B/ | AB/c/ (df){f} (ec){c} (Be) | 
{g} aA a/g/f/e/ fd/f/ ec/B/ | AB/c/ (d/f/B/e/){e} c(AA) :|  