Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
M:4/4
K:F
['FG A2 BA G2 AG F2 ff', '(fe) (ed)(dc)']  
X:1
L:1/8
M:4/4
K:F
"^Andante" FG | A2 BA G2 AG | F2 ff f2 c/d/f | (ga/b/ ag) fedc | c2 (Td2{cd} c2) (FG) | 
 (A>cBA) (G>BAG) | (F2 f).f .f2 c/d/f | (gbag) (fe)(dc) | c2 =B2 [Ec]2 || (fe) | (ed)(dc) (cAGF) | 
 (FA/c/ f).f .f2 g/f/d | (c>BAG) (BAGF) | (DF).F.G F2 (fe) | (ed)(dc) (cA)(GF) | 
 Fc ff f2 (g/f/e/d/) | c2 AG (BAGF) | (DF).F.G !fermata!F2 ||  