Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/8
M:4/4
K:D
['D3 F A2', 'd2 fd Adfd Adfd edcA B2 BA']  
X:1
L:1/8
M:4/4
K:D
|: D3 F A2 FA | BABc de d2 | D3 F A2 FA | BAGF EGFE | D3 F A2 FA | BABc de d2 | D3 F A2 GF | 
 EGFE D4 :: d2 fd Adfd | Adfd edcA | B2 BA BAGB | Afed cABc | d2 fd Adfd | Adfd edcA | B2 BA BdcB | 
 Afec d4 :|  