Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:4/4
K:D
['D2 A2 dB', 'dBAB defe', 'defg a2 fa be e2', 'df f2']  
X:1
L:1/8
M:4/4
K:D
 FD D2 A2 dB | ADFA BE E2 | ADFA dfec | dBAF AD D2 | AD D2 A2 dB | A2 FA BE E2 | DEFA dfec | 
 dBAF AD D2 || dBAB defe | dB B2 gB B2 | dBAB defe | dBAF AD D2 | dBAB defe | dB B2 gB B2 | 
 dBAB dfec | dBAF AD D2 || a3 f defg | a2 fa be e2 | a3 f dfec | dBAF AD D2 | af f2 defg | 
 a2 fa be e2 | g3 e f3 e | dBAF AD D2 || df f2 dfef | df f2 afef | dffe f3 e | dBAF AD D2 | 
 df f2 dfef | df f2 afef | g3 e f3 e | dBAF AD D2 ||  