Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:D
['F Ddfe BEEF DAAF Ddfd fddF', 'Ddfe BEEF DAAF Ddfd fddg geeg B/A/B/c/']  
X:1
L:1/8
M:4/4
K:D
 F |:"D" DAAF"A/D" Ddfe |"D" dBAF"A7" BEEF |"D" DAAF Ddfd |"G" Bc"A7"de"D" fddF |"D" DAAF Ddfe | 
"D" dBAF"A7" BEEF |"D" DAAF Ddfd |"G" Bc"A7"de"D" fddg ||"D" fdef"A7" ge"D"fd |"G" BAgf"A7" geeg | 
"D" fdcA"G" B/A/B/c/ dB |"A7" Aceg"D" fddg |"D" fd"G"Bd"D" AdAF |"G" GB"D"AF"A7" BEEF | 
"D" DF"A7"EG"D" FA"G"GB |1"D" Ad"A7"ce"D" dDDF :|2"D" Ad"A7"ce"D" dD D2 |]  