Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:C
['', 'ABdA TBAFA', 'TBAFA ABde']  
X:1
L:1/8
M:4/4
K:C
 .abc ||[M:2/2][K:D] (3:2:1TA2 | d3 A (TBA)FA | ABdA TBAFA | ABde fded | Beed efge | d2 dA TBAFA | 
 ABdA TBAFA | ABdefdec | dBAF D2 || (fg) | a2 ag f2 Tfe | d2{e} dA TBAFA | ABde fded | Beed egfe | 
 abag fgfe | d3 A TBAFA | ABde fdec | dBAF D2 |]  