Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
Q:1/8=80
M:6/8
K:none
['f2{gBG} B{g}Bcd |{gcd}', 'B |{gcd}', 'f2 a{fg}fec']  
X:1
L:1/8
Q:1/8=80
M:6/8
K:none
|:{d} c/e/ | f2{gBG} B{g}Bcd |{gcd} cB{G}A{g}B{d}ce | f2{gBG} B{g}Bcd |{gcd} cB{G}Aaga || 
 f2{gBG} B{g}Bcd |{gcd} cB{G}A{g}B{d}ce |{g} fecagf |{g} ec{G}A{g} B3 ::{d} c/e/ | 
 f2{gBG} B a2{BG} B |{gcd} cB{G}A{g}B{d}ce | f2{gBG} B a2{BG} B |{gcd} cB{G}Aaga || 
 f2{gBG} B a2{BG} B |{gcd} cB{G}A{g}B{d}ce |{g} fecagf |{g} ec{G}A{g} B3 ::{d} c/e/ | 
{afg} f2 B{g} B2{GdGe} B |{gcd} cB{G}A{g}B{d}ce |{gfg} f2 B{g} B2{GdGe} B |{gcd} cB{G}Aaga || 
{afg} f2 B{g} B2{GdGe} B |{gcd} cB{G}A{g}B{d}ce |{g} fecagf |{g} ec{G}A{g} B3 ::{d} ce | 
{gfg} f2 a{fg}fec |{g} ec{G}A{g}B{d}ce |{gfg} f2 a{fg}fec |{g} B{d}ceaga ||{gfg} f2 a{fg}fec | 
{g} ec{G}A{g}B{d}ce |{g} fecagf |{g} ec{G}A{g} B3 :|  