Develop a piece of music using the specified alphabetic notation system and the provided motif.
X:1
L:1/8
Q:1/2=100
M:2/2
K:G
['G2 g2 d2', 'B2 AG', 'AcBA GFGA BABG cBcd edec BABG FGAB']  
X:1
L:1/8
Q:1/2=100
M:2/2
K:G
 G2 g2 d2 BA |"^tr" G4 D4 | G2 g2 d2 cB | fg a2"^tr" A3 B | G2 g2 d2 cB | cBcd e2 dc | B2 AG FGAB | 
 G4 D4 :: B2 AG c2 BA |"^tr" G4 D4 | B2 AG c2 BA | fg a2 A3 c | B2 AG c2 cB | cBcd e2 dc | 
 B2 AG FGAB |"^tr" G4 D4 :: BABG cBcA |"^tr" G4 D4 | BABG cBcA | fgab AcBA | GFGA BABG | 
 cBcd edec | BABG FGAB | G4 D4 :|  