Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:2/4
K:C
['', 'c2 z', "a>b ag d'>c' c'b de ff f"]  
X:1
L:1/8
M:2/4
K:C
 g |:"C" ^fg ag | eg cg |"G7" dg Bg |"C" eg cg | ^fg ag | ee' d'c' |"G7" ba fd |1"C" c2 z g :|2 
"C" c2 z d |:"D7" ^cd e^f |"G" gd bd |"D7" ad d'c' |"G7" ba gf |"C" eg ag | gc' ea |"G7" gf dg |1 
"C" c2 z d :|2"C" c2 z c ||[K:F]"F" cf gf |"C7" Tfe c'2 |"Bb" ed b2 |"F" dc a2 | a>c a>f | 
"C7" fe e2 | b>c b>e |"F" gf f2 | cf gf |"C7" Tfe c'2 |"Bb" ed b2 |"F" dc a2 | a>c a>b | 
"Gm/Bb" ag d'>c' |"C7" c'b de |"F" ff f z |]  