Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/8=80
M:6/8
K:D
['e2 f{a} g2']  
X:1
L:1/8
Q:1/8=80
M:6/8
K:D
"Em" E2 F{GA} G2 A |"Em"{Bc} B2 A Bcd |"Em" E2 F{GA} GBA |"A" Bdd{d} cA{B}A |"Em" E2 F{GA} G2 A | 
"Em"{Bc} B2 A Bcd |"D" e2 d{Bc} B2 A |"A" BAA{AB} A3 :|"Em" e2 f{a} g2 e |"Em" eaa"D"{g} fed | 
"Em" e2 f{a} g2 f |"Em" edB"D" eAA |"Em" e2 f{a} g2 e |"Em" eaa"D"{g} fed |"Em" e2 d B{c}BA | 
"D" BAA"A"{AB} A3 :|  