Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/16
M:2/4
K:Dmix
['B,2 DDDD D2F2 EDEF D4 FFFF F2A2', 'a2bg e2ef gage']  
X:1
L:1/16
M:2/4
K:Dmix
 B,2 | DDDD D2F2 | EDEF D4 | FFFF F2A2 | GFGA F4 | A2BA A2dB | A2BA A2F2 | G2E2 D2C2 | D4 D2 |] 
 !fermata!fg | a2bg e2ef | gage efed | cdcB A2fg | a2bg e2ef | gage d2ef | gfed cdec | 
 d4"^D.C." d2 |]  