Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/8
M:6/8
K:D
['FAA AFD DBB Bcd AFD', 'faa efg']  
X:1
L:1/8
M:6/8
K:D
 G2 B BAG | FAA AFD | DBB Bcd | AFD E2 D | DBB BAF | FAA AFD | DBB Bcd | AFD E2 D :| faa efg | 
 fef dBA | faa efg | fdd d2 e | faa efg | fef dBA | GAG GBd | AFD E2 D :|  