Advanced filtering

[DetlevD]

@zerow

... I need to filter all files to only those, which have the same beginning in the TITTLE tag, but only those cases where the is at least one with a little longer variation. And I dot know the names / titles ...

You may try out an interactive heuristic approach by searching for similarities.
Script To Find Filenames Not Matching ID3 Tag
Simple Soundex Calculator

DD.20150214.1930.CET