Incorporate the motif and the alphabetical representation of the specified musical sequence to create a unique piece of music.
X:1
L:1/4
M:2/4
K:G
['G A']  
X:1
L:1/4
M:2/4
K:G
 _B A/G/ | =F3/2 F/ | G A | _B2 | B A/G/ | =F3/2 F/ | G A | _B2 | B A/B/ | G A/F/ | G z | _B c | 
 d z | _B c | d z | d c/_B/ | A G | A G/F/ | G z |]  