Create a musical piece using the provided alphabetic structure and motif.
X:1
L:1/16
M:2/4
K:G
['[Bg]2[Bg]2 z2', 'Beef gfeg fbaf']  
X:1
L:1/16
M:2/4
K:G
 (3def | [Bg]2[Bg]2 z2 GA | BdcA BdcA | [Bg]2[Bg]2 z2 AB | cABG AFED | [Bg]2[Bg]2 z2 GA | 
 BdcA BdcB | agfa gedc | BGAF G2 :: B2 | Beef gfeg | fbaf gfed | Beef gfeg | fbaf e2>B2 | 
 [Be]2[Be]2 z2 [Af]2 | [Bg]2[Bg]2 z2 [Af]2 | [^db]abc' babc' | [^db]4 z2 :|  