Construct musical melodies following the designated letter arrangement and the given motif.
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
['B G', 'c G E']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
 G/ G3/2 B G c2 G E | G/ G3/2 B G A2 F D | G/ G3/2 B G (cA) B G | A c B d A2 F D || 
 =c c G E E c G E | =c c G E D A F D | =c c G E E c G E | A c B d A2 F D |]  