Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:D
['fdd cdd Bdd', 'FED EEE']  
X:1
L:1/8
M:6/8
K:D
 fdd cdd | Bdd ABA | fdd Bcd | efe ede | fdd cdd | Bdd efg | fdd cde |1 ded d3 :|2 dAF DEF || 
 EEE FFF | GGG FED | EEE FED | EEE EFG | EEE EFG | AAA GFE | DFA ddd |1 BAF DEF :|2 BAF D3 ||  