Construct musical melodies following the designated letter arrangement and the given motif.
X:1
L:1/8
Q:1/8=120
M:4/4
K:Eb
['ecde c2 Bc cagf gede e2 de', 'f gefg e2']  
X:1
L:1/8
Q:1/8=120
M:4/4
K:Eb
|: ecde c2 Bc | cagf gede | e2 de cBcA | GBcA GAAG | ecde c2 Bc | cagf gede | e2 de cBcA | 
 GBcA GAAG ::[K:C] gefg e3 f | gefg e2 de | fdec B3 c | dB c2 B2 AG | gefg e3 f | gefg e2 ag | 
 d2 db babg | eg c'2 c'4 :|  