Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
Q:1/2=96
M:2/2
K:Amix
['e TcA c/d/e AecA BGgd (B/c/d) Ge', 'a>bag egab']  
X:1
L:1/8
Q:1/2=96
M:2/2
K:Amix
 e | TcA c/d/e AecA | BGgd (B/c/d) Ge | TcA (c/d/e) aecA | BGgB A/A/A A :| g | a>bag egab | 
 g>age dBGg |1 a>bag egab | gegB A/A/A A :|2 afge fdec | dBgB A/A/A A |]  