Develop an original musical piece that integrates the given alphabet sequence and motif.
X:1
L:1/8
M:2/4
K:D
['e>d f f2 f g>f a a2', "[d'f]>a [d'f]>a", "d'=c' ba", "[a^f]4 d4 d'a d'=c' ba =c'b a^g"]  
X:1
L:1/8
M:2/4
K:D
"A" |:"D" d2"A7" e>d |"D" f f2 f |"D" f2"A7" g>f |"D" a a2 a |"D" a/b/a"A7" g/a/g | 
"D" f/g/f"A7" e/f/e |"D" d[gB]"A7" [fA][eG] |1"D" [dF][cE]"A7" [BD][AC] :|2"D" [dF] z [d'af] z |] 
"B" |:"D" [fA] z"G" [gB] z |"D" [fA]g/f/ ed |"D" [fA] z"G" [gB] z |"D" fg/f/ ed |1 
"D" [fd]2"A7" [ge]2 |"D" [af]2"G" [bg]2 |"D" ([a-f]2"A7" [ag]2) |"D" [d'f]/c'/b/a/ g/f/e/d/ :|2 
"D" d e2 d |"A7" [gB][fA] [eG][fA] |"D" [dF]4- | [dF] |]"C" |: dfa |"D" [d'f]3 a | [d'f]3 a | 
 [d'f]>a [d'f]>a | [d'f]>a [d'f]>a |"Dm" d'a d'=c' | ba =c'b |"D" [a^f]4 | d4 |"Dm" d'a d'=c' | 
 ba =c'b |"D" [a^f]4 | d4 |"Dm" d'a d'=c' | ba =c'b |"A7" a^g ba |"Dm" ^g=f ed |"D" [a^f]2 [fA]2 | 
"A7" [eG][dF] [eG][fA] |"D" [dF]4- | [dF] :|  