Develop a musical composition by utilizing the given alphabetic notation and supplied motif.
X:1
L:1/4
M:2/2
K:Gmix
['c B', 'G4 z B2 ^F/ F/ F F']  
X:1
L:1/4
M:2/2
K:Gmix
 z2 B4 d4 A2 G4 | z c B A | B2 ^c2 | d4 z B c d e4- | e d/ c/ B c | d4 | d d c B | A4 | z c B A | 
 G3/2 E/ G A | B3 A ^G4 | z G B ^c | d2 B c2 G A A G4 |: z B2 ^F/ F/ | F F B3/2 F/ | 
 ^G A3/2 B/ c B4 | z G B ^c d3/2 D/ ^F G A3/2 A/ c d e2 z B | d4- d3 G | A3 A G4 :|  