Construct a piece of music built on the supplied alphabet sequence and motif.
X:1
L:1/8
M:2/2
K:G
['G2 (BG)', 'g2 (fg)']  
X:1
L:1/8
M:2/2
K:G
 G2 (BG) FGAc | B2 (BA) BEEF | G2 (BG) FAB^c | dBAG FDEF | G2 (BG) FGAc | B2 (BA) BEEF | 
 G2 (BG) FAB^c | dBAc BE E2 || g2 (fg) edBA | G2 (GA) Bdef | g2 (fg) edB^c | dBAG FDDf | 
 g2 (fg) edBA | G2 (GA) Bdef | gfed efge | dBAG FDEF ||  