Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:C
['BEA |[M:2/2][K:G]SOSOO .!fermata!PMTuCO MG2 (BG) BddB |{d}', 'bggd edcB A2 G2 bgaf gfed egfa']  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:2/2][K:G]SOSOO .!fermata!PMTuCO MG2 (BG) BddB |{d} cBcd efge | GBdG Bdgd | ecBc A2 G2 :| 
 g2 (3(aga) bggd |{f} edef gdBG | g2 (3(aga) bggd | edcB A2 G2 | bgaf gfed | egfa gedB | 
 GBAc Bdgd | ecBc A2 G2 |]  