Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/16
M:2/4
K:none
['', 'f2 e4', 'aggf f2>a2 fed2 f2>a2{a} g2{g}f2', 'ba g3{ag}=f =f2 e4']  
X:1
L:1/16
M:2/4
K:none
"A" |:"E" e4 e^d^cd | f2 e4 e2 |"Dm" ^d^ggd dggd | ^d^ggf feed |"E" e4 e^d^cd | f2 e4 ba | 
 ^gaba"Dm" Tg2>f2 |1,3"E" ef^ga"Dm" bagf :|2,4 f2 e4 z2 :|"B" |:"E" ^g2>e2"Am" a2>e2 | 
"E" b4"^(Am)" z2 ^c'2 |"Am" (3^c'2b2a2"E" (3b2a2^g2 |"Dm" (3a2^g2f2"E" (3g2f2e2 | 
"E" ^g2>e2"Am" a2>e2 |"E" b4 z2 ^d'^c' |"Dm" b^c'ba ^g2f2 |"E" f2 e4 z2 :|[K:Dmix]"C" |: 
"D" f2>a2{a} g2{g}f2 | a6 d'c' | c'bba aggf | f2>a2 fed2 |"D" f2>a2{a} g2{g}f2 |"G" g6 ba | 
"E" ^gaba"Dm" g3{ag}=f |"E" =f2 e4 z2 :|  