Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/4=85
M:2/4
K:Dmin
['A A']  
X:1
L:1/8
Q:1/4=85
M:2/4
K:Dmin
 A | A D D C | (F3/2 G/) A A | G F D C | D3 (C/D/) | F F (F/G/)(A/B/) | c2 d d/d/ | 
 c A (G/A/)(B/G/) | A3 (A/G/) | F F (F/G/)(A/B/) | c c d d | c A G F | G3 F/G/ | A D D C | 
 F3/2 G/ A A | (GF) D3/2 C/ | D3 ||  