Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
['AFDF E>FGB', 'Add A dfeg fdcA dfeg faaf gefd']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
 B | AFDF E>FGB | AFDF AddB | AFDF E>FGB | AFdF Add :: A | dfeg fdcA | dfeg faaf | gefd edcA | 
 (B/c/d) AF Add :|  