Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
Q:1/8=150
M:4/4
K:G
['G2 GD EDGD', 'G,2 gabg d2 d2 gabg e4 gbeg']  
X:1
L:1/8
Q:1/8=150
M:4/4
K:G
 G2 GD EDGD | GBdB A2 A2 | G2 GD EDGD | EGDB, A,2 G,2 :| gabg d2 d2 | gabg e4 | gbeg dgBg |1 
 AGAB G2 G2 :|  