Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:2/4
K:A
['[ec]2 [dB][cA]'  
X:1
L:1/8
M:2/4
K:A
|:"A" [ec]2 [dB][cA] | [ec]2 [dB][cA] | [ec]2 [dB][cA] |1"E7" [BGE]3 [cA] :|2"E7" [BE]4 |: 
"A" [AE]3 [BG]/[cA]/ |"E7" [dB][cA][dB][ec] |"A" [cA]3 [dB]/[cA]/ |"E7" [BE]4 :|  