Craft a musical arrangement that integrates the provided motif and upholds the required musical structure.
X:1
L:1/8
M:2/2
K:Dmix
['FD (3EFG A3 B cAdB cAGc', 'Adde fd (3efg fdec AGAB c2 cd', 'dcAG (3FED (3EFG', '(3ABc AG', 'F3 D (3EFG AB', 'Adde f3 d fdec A3 B cBcd'  
X:1
L:1/8
M:2/2
K:Dmix
 FD (3EFG A3 B | cAdB cAGc | Add^c d2 (3efg | fdec dcAG | FD (3EFG A3 B | cAdB cAGc | Addc ABAG |1 
 EFGE FDDE :|2 EFGE FDDg |: fd (3efg fdec | Addc Adde | fd (3efg fdec | AGAB c2 cd | eaag efge | 
 dfed cAGc | Addc ABAG |1 EFGE FDDg :|2 EFGE FDDE ||"^Variations:" |: (3FED FG A3 B | c2 cB cAGc | 
 Add^c d2 (3efg | fdec dcAG | (3FED (3EFG A3 B | cedB cAGc | Addc (3ABc AG |1 EFGE FDDE :|2 
 EFGE FDDg |: fded fdec | Addc Addg | fd (3efg fdec | AGAB cBcd | eaag aege | dfed cAdc | 
 (3ABc AG (3EFG AB |1 cAGE EDDg :|2 cAGE EDDE |: F3 D (3EFG AB | c2 dc cAGc | Ad d2 Adeg | 
 fdec dcAG | F3 D (3EFG AB | cAdB cAGc | Addc ABAG |1 EFGE FDDE :|2 EFGE FDDg |: f3 g fed^c | 
 Ad d2 Adde | f3 d fdec | A3 B cBcd | eaag efge | dfed c2 Bc | Addc ABAG |1 EFGE FDDg :|2 
 EFGE FDDE ||  