Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:2/4
K:F
['A>B c2', 'f>ef>e f>ga>f']  
X:1
L:1/8
M:2/4
K:F
|: A>B c2 | A>B c2 | B>AG>F E>G C2 | A>B c2 | A>B c2 | BGFE | F2 f z :: f>ef>e | f>ga>f | g>ec>a | 
 b>ge>c | f>ef>e | f>ga>f | g>ge>c | f2 f z :|  