Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:4/4
K:Amin
['c EAcA eAcA DGBg G>A c/B/A/^G/ EAAc', "cAA (a/b/) c'aea Aeac' bgdg Gdgb c'aea", "cAA (a/b/) c'aea Aeac' bgdg Gdgb c'ab^g"  
X:1
L:1/8
M:4/4
K:Amin
 c | EAcA eAcA | DGBg G>A c/B/A/^G/ | EAAc Bdce | d>g (e/d/c/B/) cAA :| (a/b/) | c'aea Aeac' | 
 bgdg Gdgb | c'aea gedc | B>g e/d/c/B/ cAA || (a/b/) | c'aea Aeac' | bgdg Gdgb | c'ab^g ae=gd | 
 Bg (e/d/c/B/) cAA |]  