Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:3/4
K:Dmin
['(G>F) D2 (G>B) (F>B) G2 (B>c)', '(cB) B3 c (B/c/ d) F2 (B<G)']  
X:1
L:1/8
M:3/4
K:Dmin
 (G>F) | D2 (G>B) (F>B) | G2 (B>c) (d/c/B/c/) |{Bc} d2 (F>G)(F>D) | F4 (G>F) | D2 (G>B) (F>B) | 
 G2 (B>c) (d/c/) (B/c/) |{Bc} d2 ed .cB | G4 || (de) | (d/e/f) (ed) (cB) | B3 c (B/c/ d) | 
 F2 (B<G) (FD) | F4 BA | G3 F (G/A/B) | (DE) F2 (BA) | G2 (ed) (cB) | G4 ||  