Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
M:3/4
K:F
['a gf eg', 'EG cE Gc', 'B2 z2']  
X:1
L:1/8
M:3/4
K:F
 a gf |:"C7" eg df ce | B3 f ed |"F" cf Ac FA | C3 A GF |"C7" EG cE Gc |1 EG cE Gc |"F" FC CF Ac | 
 f2 z a gf :|2 EG dE Gc |"F" FA, CF Ac | f2 z2 cc |:"C7" c2 Bd cB |"F" Ac fA cA |"C7" Bc eB cB | 
"F" Ac fA c2 |"C7" BA GF ED |"F" CF Ad c2 |"C7" (dG) (dG) (c(E) |1"F" F2) z2 cc :|2"F" F2 z2 d2 |: 
[K:Bb]"F7" e2 ed cB | AG FE DC |"Bb" (DF) .G(d F).B | d3 B FD |"F7" (EF) .A(E F).A | c3 A FE | 
"Bb" (DF) .B(F B).d | f2 F2 d2 |"F7" e2 ed cB | AG FE DC |"Bb" (DF) .G(d F).B | d3 B FD | 
"F7" EF AF Ac | .f2 e3 A |"Bb" B2 AB dc |1 B2 z2 d2 :|2 B2 z2 FF |:"F7" F3 G A2 |"Bb" B3 c d2 | 
"F7" .c2 f3 e |"Bb" d6 |"F7" ed cB AG |"Bb" F2 Bd f2 |"F7" ee e2 A2 |1"Bb" B2 z2 FF :|2 
"Bb" B2 z2 z2 |]  