Craft a musical piece that incorporates the given motif and follows the outlined structure.
X:1
L:1/8
Q:3/8=90
M:6/8
K:D
['BcB BAF', 'd3 fgf fed f2 a AFA dcB'  
X:1
L:1/8
Q:3/8=90
M:6/8
K:D
 BcB BAF | BcB BAF | AFA dcB | A3 F2 B | c3 d2 B | cec A2 B | c2 d edA | d3 d3 :: fgf fed | 
 f2 a AFA | dcB A2 F | Bcd B3 |"^NB Bar added" c3 d2 B | cec A3 | Bcd ecA | d3 d3 :|  