Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:4/4
K:C
['GE FD D2', 'cAAB cdeg'  
X:1
L:1/8
M:4/4
K:C
[M:4/4][K:D] g E b ua g de ea ud e ue[Q:1/8=180] (3ABA GE FD D2 | EF G2 EFGE | A2 GE FD D2 | 
 EFGE A2 A2 | A2 GE FD D2 | EF G2 EFGE | (3ABA GE FD D2 | EFGE A2 A2 || AAAB cd e2 | fded dc A2 | 
 cAAB cdeg | faeA (3dcd e2 | cAAB cdeg | fded dc A2 | cAAB cdeg | fAeA (3dcd e2 ||  