Construct a musical arrangement using the specified alphabetical sequence and the given motif as a foundation.
X:1
L:1/8
M:6/8
K:A
['(3(e/f/g/) a2 f ecA', 'e agf edc def ecA']  
X:1
L:1/8
M:6/8
K:A
 (3(e/f/g/) | a2 f ecA |{Bc} d2 e f2 (3(e/f/g/) | a2 f ecA | [BE]2 [BE] [BE]2 (3(e/f/g/) | 
 a2 f ecA | f2 g a2 e | aec' bed' | c'2 a a2 :: e | agf edc | def ecA | d2 f ecA | 
 [BE]2 [BE] [BE]2 e | agf edc | def ecA | def B2 g | a2 A A2 :|  