Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:3/4
K:D
['FAdAeA AffAgf f2 edce', 'f2 edce', '', "Bdgdad dbbdc'b b2 agfa", 'b2 agfa']  
X:1
L:1/8
M:3/4
K:D
 AG | FAdAeA | AffAgf | f2 edce | dcdBAG | FAdAeA | AffAgf | f2 edce | d2 D2 :: gf | f2 edce | 
 dcdAgf | f2 edce | dcdBAG | FAdAeA | AffAgf | f2 edce | d2 D2 :| | G2 |: dc | Bdgdad | dbbdc'b | 
 b2 agfa | gfgedc | Bdgdad | dbbdc'b | b2 agfa | g2 G2 :: c'b | b2 agfa | gfgdc'b | b2 agfa | 
 gfgedc | Bdgdad | dbbdc'b | b2 agfa | g2 G2 :|  