Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:C
['B2 B BAB GBd', '', 'gag fgf ede fdB']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:G] .abc (d/c/) | B2 B BAB | GBd gdB | A2 A AGA | Bee dBA | B2 B BAB | GBd gfg | 
 efg (f<a)g | fdd d2 || |: (e/f/) | gag fgf | ede fdB | ABA AGA | Bee dBA | gag fgf | ede fdB | 
 def (e<a)g | fdd d2 :|  