Formulate melodies by adhering to the specified pattern and supplied motif.
X:1
L:1/4
M:4/4
K:C
['_B G']  
X:1
L:1/4
M:4/4
K:C
 z2 z G | C D E F | G A (_B G) | c c2 _B | G A _B G | c c3- | c2 z G | C D E F | G A (_B G) | 
 c c2 _B | G A _B G | c c3 | g3 f | e c f d | c c2 _B | G A _B G | c c3- | c3 z |]  