- push @files, thaw flacinfo $file if $file =~ /.flac$/i;
- push @files, thaw mp3info $file if $file =~ /.mp3$/i;
- push @files, thaw vorbisinfo $file if $file =~ /.og(?:g|a)$/i;
+ my $info;
+ $info = thaw flacinfo $file if $file =~ /.flac$/i;
+ $info = thaw mp3info $file if $file =~ /.mp3$/i;
+ $info = thaw vorbisinfo $file if $file =~ /.og(?:g|a)$/i;
+ next unless defined $info;
+ my $basename = fileparse $file, '.flac', '.mp3', '.ogg', '.oga';
+ $files{$basename} //= [];
+ push $files{$basename}, $info;