Construct musical melodies following the designated letter arrangement and the given motif.
X:1
L:1/16
M:2/4
K:Amix
['e2(ec) e2c2 e2eg dBGB e2ec e2eg', 'a2af g2ge']  
X:1
L:1/16
M:2/4
K:Amix
 e2(ec) e2c2 | e2eg dBGB | e2ec e2eg | dBGB A4 :: a2af g2ge | dBge dBGB | a2af g2ge | dBGB A4 | 
 a2af g2ge | dBge dBGB | a2af g2ge | dBGB A4 :|  