Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:A
['agfe dcBA', 'A/B/c/d/ ec ecec'  
X:1
L:1/8
Q:1/8=180
M:4/4
K:A
 agfe dcBA | agfe f2 a2 | agfe dcBA | aaAA c2 e2 :| A/B/c/d/ ec ecec | B/c/d/e/ fd fd a2 | 
 A/B/c/d/ ec ecec | agfe f2 a2 |]  