# Finding Certain Letters
**URL:** https://community.mp3tag.de/t/finding-certain-letters/13652
**Category:** Support
**Created:** [July 17, 2012, 4:43pm UTC](https://community.mp3tag.de/t/finding-certain-letters/13652 "2012-07-17T16:43:07Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Phixion](https://community.mp3tag.de/u/Phixion)
#### Post date: [July 17, 2012, 4:43pm UTC](https://community.mp3tag.de/t/finding-certain-letters/13652/1 "2012-07-17T16:43:07Z")
Hey guys,
Sorry for the vague topic, I initially had a few queries but managed to find a solution.
I'm looking for a way to filter single characters that have a "." (period) immediately after them.
Does anyone know of the syntax?
Many thanks.
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [July 17, 2012, 4:47pm UTC](https://community.mp3tag.de/t/finding-certain-letters/13652/2 "2012-07-17T16:47:28Z")
> [@Phixion](#):
>
> ... all filenames with "&" at the beginning (after the tracknumber)......
> Also, is there a way to filter all single character letters with a "." (period) after them?
>
> As usual... many thanks!
try
%\_filename% MATCHES ^\d+&
and
%field% MATCHES ..
with %field% is the proper name for the field, e.g. %title%
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### Author:  [@DetlevD](https://community.mp3tag.de/u/DetlevD)
#### Post date: [July 17, 2012, 5:32pm UTC](https://community.mp3tag.de/t/finding-certain-letters/13652/3 "2012-07-17T17:32:13Z")
> [@Phixion](#):
>
> ... I'm looking for a way to filter single characters that have a "." (period) immediately after them. ...
Maybe something like this ...
Filter expression: **"%\_FILENAME%" MATCHES "\<\S."**
... or ...
Filter expression: **TITLE MATCHES "\<\S."**
DD.20120717.2130.CEST
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:23pm UTC](https://community.mp3tag.de/t/finding-certain-letters/13652/4 "2026-02-09T12:23:57Z")