Create a musical composition using the provided alphabet sequence and motif.
X:1
L:1/4
M:3/4
K:Gmix
['G B2', 'A A']  
X:1
L:1/4
M:3/4
K:Gmix
 z z G B2 c | d2 B A2 A G2 | G c2 d e2 d c2 B c3 | e d c B3 | d d ^c d3 | B d A c2 G B2 A G3 |: 
 A A A c2 B | A2 ^G A3 | c B G d3 | d3/2 d/ d B A A G3 :|  