Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:2/2
K:D
['AG FA z', 'f2 af bfaf']  
X:1
L:1/8
M:2/2
K:D
 AG |:"D" FA z A BAAA | dfed"G" BcdA |"D" FA z A BAAA | dfed"G" B2 AG |"D" FA z A BAAA | 
 dfed"G" Bdef | g3 e"D" f3 e |"A" dfed B2 A2 ::"D" f2 af bfaf |"G" gfed"A" Bcde |"D" f2 af bfaf | 
"G" gfed"A" B2 A2 |"D" f2 af bfaf |"G" gfed"A" Bdef |"G" g3 e"D" f3 e |"A" dfed B2 A2 :| 
"A""_Last time" dfed B2 z2 |]  