Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/16
M:2/4
K:G
['BcBA B2d2 GAGF G2B2 cdcB c2e2 A8', 'B8 g4 f2a2 c6 e2 e2dd d2b2']  
X:1
L:1/16
M:2/4
K:G
 BcBA B2d2 | GAGF G2B2 | cdcB c2e2 | A8 | ABAG A2c2 | FGFE F2A2 | A2GF G2A2 | B8 :: g4 f2a2 | 
 c6 e2 | e2dd d2b2 | g6 B2 | B2AA A2f2 | f2gf e2f2 | g2gg g2g2 | g8 :|  