Craft a musical performance that integrates the mentioned motif and follows the predetermined alphabetical arrangement.
X:1
L:1/8
Q:1/8=280
M:2/4
K:A
['ef ec (3B/c/B/A', 'fe/f/ e/c/B e/c/B']  
X:1
L:1/8
Q:1/8=280
M:2/4
K:A
 B>f ef | ec (3B/c/B/A | Bc ef | ec (3B/c/B/A | af ef | ec (3B/c/B/A | Bc e/f/e/c/ |1 BA A2 :|2 
 BA Ac/B/ || AG/A/ Bc/B/ | AB/A/ fe/f/ | e/c/B e/c/B | c/B/A ec/B/ | A2 Bc/B/ | AB/A/ fe/f/ | 
 e/c/B e/c/B |1 c/B/A Ac/B/ :|2 B z A2 ||  