How can the following logic be implemented in Perl?

Question

Perl

Hello, how can we do the following:
We have a variable that stores, well, let's say "Hello".
How can I check that "Hello" is really there, and then play the mp3 file hello.mp3 after that?
Accordingly, if the variable contains "Andrew", the Andrew.mp3 file should be played,
and so on.
In other words, the mp3 file that corresponds to what is in the variable should be played.

Answer 1

my $a='Hello'
if (-e -f $a){system ($a."mp3")}