Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:2/4
K:G
['(d>e) (=fd) (g>=f) (ec) (d.e.=f.d) (.e.!fermata!g) z2']  
X:1
L:1/8
M:2/4
K:G
 (d>e) (=fd) | (g>=f) (ec) | (d.e.=f.d) | (.e.!fermata!g) z2 | (g>a) (gf) | (ed) (ge) | (dB) (cA) | 
 (A>G).E D |"^playfully" (d>G).G.B | (AG) (A<B) | (d>G) .G.B | (.A.B) .e2 | (d>G) (G<B) | 
 (A>G) (AB) | (gf/).e/ .d.B | .G.B .d2 ||  