Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:4/4
K:F
['A F>C A,<F C<FA,<F C>F A,<A G>G,', 'c<A f>A']  
X:1
L:1/8
M:4/4
K:F
 A | F>C A,<F C<FA,<F | C>F A,<A G>G, B,<G | F>CA,>F C<FA<f | c>FA>f A<FF :| f | c<A f>A c>f A<f | 
 c>f A<a g>G B<d | c<A f>A c>fA>f | c>FA>f A<F F>f | c<A f>A (3ccf (3Aaf | (3ccf (3Aaa g>G B<b | 
 (3agf (3efg (3fcB (3ABd | (3cAF DFB A<FF ||  