Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/4=120
M:2/2
K:G
['AGEF [G,G]2 [G_B]2- [GB]2 [GB]2 ABGG A(G[GB])G', '[dg][eg] [dg]2 [Bg]2- [Bg](ab)a']  
X:1
L:1/8
Q:1/4=120
M:2/2
K:G
"^Moderately Quick" !slide!g2- | gedB G2 G2 | [G,B] [G,G]2 [G,G] [G,G]2 !slide!g2- | gedB G2 G2 | 
 AGEF [G,G]2 [G_B]2- | [GB]2 [GB]2 ABGG | A(G[GB])G G2 D2- | DFEF GG[GB]G | AGEF [G,G]2 [G_B]2- | 
 [GB]2 [GB]2 ABGG | A(G[GB])G G2 D2- | DFEF GG[GB]G | AGEF [G,G]2 || ([Bg-][dg]-) | 
 [dg]2 [dg][eg] [dg]2 [Bg]2- | [Bg](ab)a [Bg]2 [dg]2- | [dg][eg] [dg]2 [Bg]2- | [Bg](ab)a [Bg]2 ||  