Develop a musical composition by utilizing the given alphabetic notation and supplied motif.
X:1
L:1/8
M:4/4
K:D
['FGAF D2 Dg', 'fa dafa']  
X:1
L:1/8
M:4/4
K:D
 AG | FADA FADF | ABAG FEED | FGAF D2 Dg | fdec dABG | FADF AdAF | GBAF GFED | FGAF D2 Dg | 
 fdec defg || a2 fa dafa | (3gag eg =cgeg | a2 fa dafa | gbag fdfg | (3aaa fa dafa | 
 (3gag eg =cgeg | fage fdec | dABG FEDf ||  