Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:3/4
K:F
['A>B c3 f', '_e d>c']  
X:1
L:1/8
M:3/4
K:F
 F | A>B c3 f | g>a g3 G | A>B c3 f | a/g/f/e/ f2 F2 | A>B c3 f | g>a g3 G | A>B c3 f | 
 a/g/f/e/ f3 :: _e | d>c B3 c | d>c _e2 dc | df c2 a2 | c'/b/a/g/ f2 z f | d>c A3 f | 
 d/c/B/A/ G3 _e | d>c f3 A | c/B/A/G/ F3 :|  