Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
Q:1/4=100
M:4/4
K:A
['cBAg f/g/a e>c d>fe>d B/B/B Be c>B', 'A2 c>A e>A']  
X:1
L:1/8
Q:1/4=100
M:4/4
K:A
 cBAg f/g/a e>c | d>fe>d B/B/B Be | c>B Aa fg/a/ ec | d<f e<d A/A/A A2 || c>A e>A f>A eA | 
 dfe>d B/B/B A2 | c>A e>A aA ec | df ec A/A/A"^*" A2 |]  