Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:4/4
K:E
['', 'B,C E2 EF G2']  
X:1
L:1/8
M:4/4
K:E
 B,C |: E2 EF G2 FE | G2 FE"A" C E3 | z6 B,C |"E" E2 EF G2 GB | c2 BG"Abm" B4 | z6 GB | 
"Dbm" c2 cB"E" G2 FE |"E" G2 z2 FE"A" CE | z6 B,C |"E" E2 EF G2 AG |1"B7" F2 ED"E" E4 | 
"E" z6 B,C :|2"B7" F2 ED"E" E4 |"E" z8 |: G"Dbm" e3 G"Abm" d3 | E"A" c3 E"E" B3 | 
 G"Dbm" e3 G"Abm" d3 | E"A" c3 B"E" g3 | G"Dbm" e3 G"Abm" d3 |1 E"A" c3 d"E" B2 C/D/ | 
"Dbm" E2 E"Abm" D2 E2"A" G |"A" z8 :|  