Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/8
M:4/4
K:D
['ag fedB ABcA d2 F2 ABAF GB', 'D2 z2 e2 ef gagf eceg a2']  
X:1
L:1/8
M:4/4
K:D
 ag | fedB ABcA | d2 F2 ABAF | GB G2 FAFD | A,2 C2 D2 :| z2 | e2 ef gagf | eceg a2 a2 | 
 c2 ec B2 g2 | fdec d2 :|  