Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/2
K:C
['aa ag/f/', 'c d2 e2 d3 c', 'c3 g ed ec d/c/d/e/ dg', 'd3 d BG cd e/d/e/f/ ea ^fg']  
X:1
L:1/8
M:2/2
K:C
 c | e2 (fe/f/) g3 g | aa ag/f/ gg gf/g/ | aa ag/f/ ga gf | e2 d2 c3 |] c | d2 e2 d3 c | 
 de fe de dc | B2 A2 G3 c | d2 e2 d3 c | defd gfed | c>d d2 c3 |] g | ed ec d/c/d/e/ dg | 
 edec d3 |] d | BG cd e/d/e/f/ ea | ^fg a^f g3 g | fedc d/c/B/A/ Gg | cd d2 c3 |]  