Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
Q:1/2=90
M:4/4
K:C
['egga geca gcgc eddg egga aage f/e/d/c/', 'GcEc dcde'  
X:1
L:1/8
Q:1/2=90
M:4/4
K:C
 egga geca | gcgc eddg | egga aage | f/e/d/c/ Bg ec c2 :: GcEc dcde | cced cAAc | GcEc dcde | 
 cAAc EC C2 | GcEc dcde | cced cAAc | GcEc AcGc | Aagf ec c2 |]  