Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
Q:1/8=200
M:3/4
K:G
['DGA B2 AG Bc d3', 'BB B2']  
X:1
L:1/8
Q:1/8=200
M:3/4
K:G
"^moderate" DGA | B2 AG Bc | d3 d ed | c2 dc Bc | A3 DGA | B2 AG Bc | d3 c Bc | A2 BA GF | G3 || 
 G/A/ BB | B2 df gf | e2 dc BB | B2 cd cB | A3 dGA | B2 AG Bc | d2 ge dB | A2 BA GF | G3- G3 |]  