Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/4
Q:3/4=100
M:6/4
K:Bb
['^F2 G', 'A B2 c d2 A B c']  
X:1
L:1/4
Q:3/4=100
M:6/4
K:Bb
 G |"^cr" G3/2"_No Key Sig in MS" A/ G ^F2 G | A2 B c2 A | B c d ^F2 G | A2"_#?" F G2 || 
"^cr" f3/2 e/ d"^cr" c3/2 B/ A | B2 c d2 A | B c d"_#?" F2 G | A3 G2 |]  