Compose a piece using the specified musical pattern based on the alphabet notation and provided melodic motif.
X:1
L:1/8
Q:1/2=100
M:2/2
K:C
['', 'ef g2', '', "ef (ge)(ge) g4 (af)(af) a4 c'2 ba"]  
X:1
L:1/8
Q:1/2=100
M:2/2
K:C
|: :: ef g2 ef g2 | cdef ed c2 | ef g2 fe d2 | G2 c6 :: :: ef | (ge)(ge) g4 | (af)(af) a4 | 
 c'2 ba g2 d2 | g6 ef | gagf efed | cdcB A2 Bc | dedc BcBA | GAGF E2 FG | ABAG FGFE | DEDC B,2 ef | 
 f2 e2 d2 G2 | c6 :|  