Invent captivating melodic motifs that merge with the given chord progressions.
'A', 'B', 'C', 'D'  
X:1
L:1/8
M:2/2
K:G
"A" |: B2 cB A2 BA | G2 AF GDB,G, | (3BcB (3ABA (3GAG (3FGF | EAAF G2 G,2 :|"B" |] GBAc Bdce | 
 d2 ed/^c/ d2 D2 | g b2 a/g/ f a2 g/f/ | edA^c d2"^D.C." D2 |]"C" |: g2 a2 bg d2 | 
 gdBG A/G/F/E/ D2 | g2 a2 bgdg |{g} fe/d/ ed/^c/ d2 D2 :|"D" |: GccB dB e2 | 
 BA/B/ c/B/A/G/ A/G/F/E/ D2 | GccB dB e2 | BA/B/ c/B/A/B/ G2 G,2 :|  