Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/4
K:Eb
['B eB ef/g/ a/f/ g/e/ cB/G/ AB']  
X:1
L:1/8
M:2/4
K:Eb
 G/A/ | B>A GB | e/>f/g/>e/ fB/>G/ | AG F>F | E3 B | eB ef/g/ | a/f/ g/e/ cB/G/ | AB cf | B3 B | 
 eB ef/g/ | a/f/ g/e/ cB/G/ | AB cf | B3 G/A/ | B>A GB | e/>f/ g/e/ fB/G/ | AG F>F | E3 ||  