Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/2=70
M:4/4
K:G
['g d>GTd>B A>Bc>e d>G d>B d>eg>b geTd>B', '', 'g Ggg>b a>ga>b Gg-g>b g>bg>d e>gTd>B A>Bc>e']  
X:1
L:1/8
Q:1/2=70
M:4/4
K:G
 g | d>GTd>B A>Bc>e | d>G d>B d>eg>b | geTd>B A>Bc>e | dGd>B G2 G :| g |: Ggg>b a>ga>b | 
 Gg-g>b g>bg>d | e>gTd>B A>Bc>e | d>Gd>B G2 G>g | G>gg>b Ta>ga>b | G>gg>b g>bg>"^NB"d | 
 e>gdB ABc>e | Gg/a/ b<g{f} g2 ge :|  