Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:3/4
K:D
['a>(f- e>f d>A- e2 a>A- A2 c>e']  
X:1
L:1/8
M:3/4
K:D
|:"D" a>(f- f>g)"A7" e>f |"D" d>A- A>f"A7" e2 | a>A- A2 c>e |"D" (3(gf)d- d>e f>g | 
"D" a>(f- f>g)"A7" e>f |"D" d>A- A>f"A7" e2 | a>A- A2 c>e |"D" (3(gf)d- d4 ::"D" D>F- F>A D>F | 
"G" G>B- B>A"Em" G>B |1,3"A7" A>c- c>e A>c |"D" d>f- f>e d>A :|2,4"A7" A>c- c>e A>c |"D" d2 d4 :|  