Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
Q:1/8=240
M:2/4
K:D
['[BG,][GG,][DG,]G, [BG,][GG,][DG,]G, [BG,]/A/[BG,]/=c/[BG,][AD,]']  
X:1
L:1/8
Q:1/8=240
M:2/4
K:D
 [DG,][BG,][BG,][AD,] | [GG,]/A/[GG,]/E/[DG,]G, | [DG,]/E/[FG,]/G/[AD,][AD,] | 
 [GG,]/F/[GG,]/A/[BG,][GG,] | [DG,][BG,][BG,][AD,] | [GG,]/A/[GG,]/E/[DG,]G, | 
 [DG,]/E/[F=C,]/G/[AD,][AD,] | [GG,]/F/[GG,]/A/[GG,]G, | [BG,][GG,][DG,]G, | [BG,][GG,][DG,]G, | 
 [BG,]/A/[BG,]/=c/[BG,][AD,] | [AD,]/G/[AD,]/B/[AD,][GG,] | [BG,][GG,][DG,]G, | [BG,][GG,][DG,]G, | 
 [BG,]/A/[BG,]/=c/[BG,][AD,] | [ED,][FD,][GG,]G, |]  