Develop a melodic piece that matches the specified chord pattern.
'C', 'Am', 'D7', 'G', 'D7'  
X:1
L:1/8
Q:1/4=50
M:2/4
K:G
|:"C" cE GG | cE GG |"Am" cB AG |"D7" FE D2 ::"G" DG/G/ GG |"D7" GF FA | cB/B/ AG | FE D2 :|  