Construct a musical piece utilizing the given sequence in alphabetical form and the supplied motif.
X:1
L:1/8
M:6/8
K:A
['e2 a eca eca ecA', 'f2 a']  
X:1
L:1/8
M:6/8
K:A
|: e2 a eca | eca ecA | Tf2 e ecA | aec TB3 | e2 a eca | eca ecA | f2 a ecA | (B/c/d)B A3 :: 
 =g3 Tf2 a | efe ecA | AcA cec | (f/^g/a)c B3 | =g3 f2 a | efd ecA | f2 a ecA | (B/c/d)B A3 :|  