Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
Q:1/8=160
M:6/8
K:D
['FED d2 B dcd efg fed', 'dAA dAA']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:D
 E | FED d2 B | dcd efg | fed BAG | FAF GFE | FED d2 B | dcd efg | fed BAF | ABc d2 :| B | 
 dAA dAA | dAA AGF | EGG EGG | EGG GFE | F3 GAG | FED EAG | FED BAG | ABc d2 :|  