Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:4/4
K:F
['F2 f4 ed e2 g4', 'F2 (3cde fcAF A2 fa gfed c2']  
X:1
L:1/8
M:4/4
K:F
 AG | F2 f4 ed | e2 g4 fe | f2 a4 gf | e2 c2 c2 dB | F2 f4 ed | e2 g4 a2 | bagf agfe | f2 F2 F2 :: 
 (3cde | fcAF A2 fa | gfed c2 fg | agfe fagf | e2 cc c2 e2 | dBBB b3 g | afed c2 F2 | GBAc BdcB | 
 A2 F2 F2 :|  