Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:3/4
K:D
["d4 ef dc' d'4", 'A4 Bc']  
X:1
L:1/8
M:3/4
K:D
 d4 ef | dc' d'4 | d4 ef | dc' d'4 | b2 agfe | a2 gfed | ef g2 fg | e6 :: A4 Bc | A^g a4 | A4 Bc | 
 Af g4 | bagfed | cBAGFE | FA d2 ce | d6 :|  