Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/8
M:4/4
K:D
['DFAF GBed', "fd d2 ad d2 fdad d'dfd ge"]  
X:1
L:1/8
M:4/4
K:D
 fe | dFAd cEGB | ADFA G2 FE | DFAF GBed | ca a2 bage | fAdf eAce | dFAd B2 GE | DFAF GBed | 
 (3cBA (3GFE D2 :| de | fd d2 ad d2 | fdad d'dfd | ge e2 cege | dcde fdAd | fd d2 ad d2 | 
 fdad d'dfd | ge e2 ceae | (3gfe (3cBA d2 :|  