Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:4/4
K:C
['GABG AGEF GFGA BABd (3(efg)', '(3(gab) (eg) b2 (ag)']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:G] .abc (3(def)"^segno" | g2 fd edBA | GABG AGEF | GFGA BABd | (3(efg) (af) gfed | 
 g2 (fd)edBA | GABG AGEF | GFGA BABd | (3(efg) af g2 || (!fermata!ef) | (3(gab) (eg) b2 (ag) | 
 (3(fg(a) d)f a2 (gf) | (3(gab) (eg) b2 (ag) | (3(fga) (df) e2 (ef) | g b2 b b2 ag | f a2 a a2 gf | 
 (3(gag) bg (3(fgf) af | edef gbaf"^segno" |]  