Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/16
M:4/4
K:D
['efec A2A2', 'A2FA Add2'  
X:1
L:1/16
M:4/4
K:D
"A" |:"D" fgfc"A/C#" efec |"E/B" efec"A" A2A2 |"G" Abbf"A7" fgec |"D" d2b2"A7" a2g2 | 
"D" fgfc"E7" efec |"A" efec A2A2 |"Bm" Abbf"A7/C#" fgec |"D" d2d2 d4 :|"B" |:"D" A2FA Add2 | 
"G" BGGB g2g2 |"D" fgfc"A/C#" efec |"E7/B" efec"A7" A2FG |"D" A2FA Add2 |"G" BGGB"Em" g2g2 | 
"D" fgfc"A7" efec |"D" d2d2 d4 :|  