Develop an original musical piece that integrates the given alphabet sequence and motif.
X:1
L:1/8
M:7/8
K:D
['EF ED D3 D4', 'B,2 [CA,]3 [CA,]4 [DA,]3 [DA,]2 [DA,]2 D3']  
X:1
L:1/8
M:7/8
K:D
|:"D" D3 F2 G2 | A3 A4 |"G" B3"D" AG FG |"D" A3 A4 |"G" B3 A2 GF |"Asus4" E2 E"G" A2 G2 | 
"D" F3"A" EF ED |"D" D3 D4 ::"D" DCD"A" E2 D2 | E3 E4 |"D" F3 FE DE |"D" F3 F4 |"D" A3 BA GF | 
"Asus4" E2 E"G" A2 AG |"D" F3"A" EF ED |"D" D3 D4 ::"^Harmony""D" D3 D2 [ED]2 | 
 [FD]3 [F-A,]2 [FC]2 |"G" [GD]3"D" [FD]E [DA,]E |"D" [FA,]2 C [FD]4 |"G" [GD]3 [FD]2 [EA,-][DA,] | 
"Asus4" [DA,]2 [DA,]"G" [DB,]2 [DB,]2 |"D" [DA,]3"A" [CA,]2 [CA,]2 |"D" A,2 G, A,4 :: 
"D" DCD"A" C2 B,2 | [CA,]3 [CA,]4 |"D" [DA,]3 [DA,]2 [DA,]2 |"D" D3 D4 | 
"D" [FD-]3 [GD][FD] [EA,-][DA,] |"Asus4" [DA,]2 [DA,]"G" [DB,]2 [DB,]2 | 
"D" [DA,]3"A" [CA,]2 [CA,]2 |"D" A,2 G, A,4 :|  