Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
M:4/4
K:F
['DFAf edfd']  
X:1
L:1/8
M:4/4
K:F
 ADFA dcdA | GCEG cGAc | ADFD dDFA | dcAG FDEC |[K:D] DFFE DFAf | edfd edBd |1 DFFE DFEF | 
 egfe fdBA :|2 DFEF DFAf | edfd EDFD ||  