Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:4/4
K:D
['A2 d2', 'BAFA ABde'  
X:1
L:1/8
M:4/4
K:D
 A2 |:"D" d2 dA BAFA | dcdA BAFA | ABde f2 ed |"G" Beed egfe |"D" d2 dA BAFA | dcdA BAFA | 
 ABde fdec |1"A" dBAF"D" D2 A2 :|2"A" dBAF"D" D2 fg |:"D" a2 ag f2 fe | d2 dA BAFA | ABde f2 ed | 
"G" Beed"A" egfe |"D" a2 ag f2 fe | d2 dA BAFA |"G" ABde fdec |1"A" dBAF"D" D2 fg :|  