Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
Q:1/8=120
M:4/4
K:G
['BcdB c2', 'A B2 G2 A4 BcdB c2 Bc']  
X:1
L:1/8
Q:1/8=120
M:4/4
K:G
"^A" BcdB c2 (3cdc | BcdB A2 D2 | BcdB c2 Bc | d2 D2 G3 A ||"^B" B2 G2 c3 A | B2 G2 A4 | 
 BcdB c2 Bc | d2 D2 G3 z ||  