Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
Q:1/4=140
M:4/4
K:Gmin
['G2 GA', '(Gg).g.a g2 ga'  
X:1
L:1/8
Q:1/4=140
M:4/4
K:Gmin
 (DG).G.A G2 GA | BGdB eGBG | (DG).G.A G2 GA | AFcF dFAF | DGGA G2 GA | BAGA Bcd=e | (f=e)fd cBAc | 
 BGAF G2 G2 :| (Gg).g.a g2 ga | bgag bgag | (cf)fg f2 fg | agfg agaf | (Gg).g.a g2 ga | 
 bagf =ecde | f=efd cBAc | BGAF G2!D.C.! G2 |]  