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
['d2 e', 'fdB fdB- Bff fdB', 'A fAA', 'ddd dBA']  
X:1
L:1/8
M:6/8
K:D
 Add d2 e | faa fge | fdB BBc | ddd edB | Add d2 e | faa fge | fdB Adf |1 edd d2 B :|2 edd d2 |: 
 e | f3- fdB | fdB- Bff | fdB ecA | ecA- Aee | fdB fdB- | Bff fdB | edB Adf | edd d2 :: B | 
 AAA B2 A | BBB d2 A | fAA B2 A | fAA dBA | BBB d2 A | fAA B2 A | fdB Adf | edd d2 :| f | 
 a2 f add | ddd dBA | BBB ddA | fAA dBA | faf add | ddd dBA | fdB Adf | edd d2 f | a2 f add | 
 ddd dBA | fAA ddd | ddd dBA | BBB ccA | dAA fff | fff AfA | edd d2 ||  