Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:4/4
K:D
['d2 DFAF', 'dfaf df/g/ a2 Acec']  
X:1
L:1/8
M:4/4
K:D
 (fe)(dc) (AB/c/) d2 | DFAF E2 E2 | fedB AB/c/ d2 | DFAF D2 D2 :| dfaf df/g/ a2 | Acec Ac/d/ e2 | 
 dfaf df/g/ a2 | Acec d2 d2 | dfaf df/g/ a2 | Acec Ac/d/ e2 | fg/a/fd ef/g/ec | dgfe d2 d2 ||  