Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
['B2 (cB) A2 (BA) G2 AF GD', 'Bdce d2 e(d/^c/) d2 D2 g b2']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:G
 B2 (cB) A2 (BA) | G2 AF GD G,2 | (3BcB (3ABA (3GAG (3FGF | EAAF G2 G,2 :|"^*" GBAc Bdce | 
 d2 e(d/^c/) d2 D2 | g b2 (a/g/) f a2 (g/f/) | edA^c d2"^D.C." D2 |]  