Design a piece of music by fusing the provided alphabetic indicator and the predetermined tune.
X:1
L:1/8
M:4/4
K:Amix
['AAAa fecA', 'Bccf ecBA', 'AaAf ecBA', 'feea efec']  
X:1
L:1/8
M:4/4
K:Amix
|: AAAa fecA | BBBA BBBc | AAAa fecA | BBcB A4 :: Bccf ecBA | BBBA BBBA | Bccf ecBA | BBcB A4 :: 
 AaAf ecBA | BBBA BBBc | AaAf ecBA | BBcB A4 :| feea efec | eeef cBBB | feea efec | AABA cAAA | 
 feea efec | eeef cBBB | feae feef | eafe cBBc ||  