Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
Q:3/8=92
M:6/8
K:F
['A/B/ c>dc c>dc', 'a>gf agf']  
X:1
L:1/8
Q:3/8=92
M:6/8
K:F
 A/B/ | c>dc c>dc | f2 c c2 A/B/ | c>dc c>dc | g2 c c2 A/B/ | c>dc c>dc | f2 c g2 c | a>gf cfe | 
 f2 F F3 || a>gf agf | g2 c c3 | agf agf | =b2 g g3 | a>gf agf | agf bag | a>gf e>de | f2 F F2 |]  