Compose a musical piece by utilizing the given alphabetic form and motif.
X:1
L:1/8
M:4/4
K:G
['BG G2', 'a bgaf']  
X:1
L:1/8
M:4/4
K:G
 BG G2 Bcdc | BGBd cA=FA | BG G2 Bcdg | ^fgaf gfdc | BG G2 Bcdc | BGBd cA=FA | BG G2 Bcdg | 
 ^fgaf g3 a || bgaf dg g2 | =fdcA =FG A2 | (3bag a^f gfd^c | dgfa g3 a | bgaf dgge | =fdcA =FGAc | 
 BGdG Bcdg | ^fgaf gfdc ||  