Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:6/8
K:D
['B/A/G/ F/E/D/']  
X:1
L:1/8
M:6/8
K:D
 D/B,/ |"D" A,>B,D"Bm" D>ED |"A" EF"D"A"G" B2 d |"D" A>FD"A" E>DE |"Bm" FDB,"G" B,2 D/B,/ | 
"D" A,>B,D"Bm" D>ED |"A" EF"D"A"G" d2 c/B/ |"D" A>FD"G" B,2 A, |"G" B,D>"A"D"D" D2 :| (3A/B/c/ | 
"D" d>fd"A" ecA |"G" B/A/B/c/d"D" B/A/G/ F/E/D/ |"A" E>DE"Bm" F>ED | FDB,"G" B,2 (3A/B/c/ | 
"D" d>fd"A" ecA |"G" B/A/B/c/ d"D" B/A/G/ F/E/D/ |"A" E>DE"Bm" FDB, |"G" A,<DD"D" [DA,]2 (3A/B/c/ | 
"D" d>fd"A" ecA |"G" B/A/B/c/ d"D" B/A/G/ F/E/D/ |"D" F/D/ A/F/ d/A/"Bm" B/A/G/ F/E/D/ | 
"Em" FEE"A" E2 D/B,/ |"D" A,B,D"Bm" D>ED |"A" EFA"G" d2 c/B/ |"D" A>FD"G" B,2 A, | 
"A" B,<DD"D" [DA,]2 |]  