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
['A>BAF ABde faef', 'faag/f/ gbba/g/ faef']  
X:1
L:1/8
M:4/4
K:D
 B | A>BAF ABde | faef d/e/f/d/ Bd | A>BAF ABde | faef d2 d2 :| faag/f/ gbba/g/ | 
 faef d/e/f/d/"^tr" BA | faag/f/ gbbc' | d'c'ba b2 ba | faag/f/ gbba/g/ | faef d/e/f/d/ Bd | 
 A>BAF ABde | faef d2 d2 ||  