Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:2/4
K:F
['c f2 e2 fe/d/ cd c2 B2', '_ec AF _ec']  
X:1
L:1/8
M:2/4
K:F
 c | f2 e2 | fe/d/ cd | c2 B2 | A3 G | ABAG | ABAG | A2 =B2 | cdef | g=BcA | =B3 c | c3 || c | 
 _ec AF | _ec AF | _ec Fe | d3 =e | fd=BG | fdBG | fc Gf | e3 b | aefd | e3 f | f3 |]  