Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
['G3 BGB', 'gdc BGB']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
 G3 BGB | AFA c2 A | G3 BGB | dcA ecA | G3 BGB | AFA c2 A | GBd d2 f | gdB cAF :| gdc BGB | 
 AFA c2 A | gdc BGB | dcA ecA | gdc BGB | AFA c2 A | GBd d2 f | gdB cAF :|  