Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/8
M:2/2
K:D
['A2 f2']  
X:1
L:1/8
M:2/2
K:D
 dB |"D" A2 f2 fgfe |"G" d2 B2 BcdB |"D" A2 f2 fgfe | d4 dB |"G" A2 f2 fgfd |"G" d2 B2 BcdB | 
"A" A2 F2 E2 FD |"D" D4 :|  