Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:6/8
K:D
['ecA Bcd', 'B3 B=cB GBB B=cB'  
X:1
L:1/8
M:6/8
K:D
|: f3 fgf | ecA ecA | Bcd ecA | Bcd e2 g | f3 fed | ecA ecA | Bcd ecA | ABc d2 A :: B3 B=cB | 
 GBB B=cB | ADD dDD | cDD ADD | B3 B=cB | GBB B=cB | ABA ABc | dAF D3 :|  