Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/8
M:4/4
K:Amin
['A2 cA', 'c2 Ac B2 GB']  
X:1
L:1/8
M:4/4
K:Amin
|: E2 | A2 cA BcdB | e2 ge dBGB | c2 e c2 B dB | A2 cA ^G2 fe | A2 cA BcdB | e2 ge dBGB | 
 cBcA EA^GB | A2 A2 A2 :: e2 | a^gab a2 ed | ^cAe^c a2 ef | gdBd gbag | f2 d2 d2 ed | c2 Ac B2 GB | 
 c2 Ac B2 GB | cBcA EA^GB | A2 A2 A2 :|  