# Filter for all titles with words in lower case **URL:** \ **Category:** Support\ **Created:** [September 11, 2006, 12:27pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757 "2006-09-11T12:27:57Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![wab66](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/w/c77e96/32.png) [@wab66](https://community.mp3tag.de/u/wab66)\ **Post date:** [September 11, 2006, 12:27pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/1 "2006-09-11T12:27:57Z")
Hey, I already looked through the FAQ but couldn't find a solution for this filter query. I'm looking for a filter too display only titles which contain at leat one word in lower case. Any thoughts? ![:rolleyes:](https://community.mp3tag.de/uploads/default/original/1X/3a79e8b0b7d169b30216785521d7c6f4f895c421.gif ":rolleyes:") Thx Wolfgang ---
**Author:** ![dano](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dano/32/6_2.png) [@dano](https://community.mp3tag.de/u/dano)\ **Post date:** [September 11, 2006, 1:10pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/2 "2006-09-11T13:10:30Z")
\b\l+\b ---
**Author:** ![wab66](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/w/c77e96/32.png) [@wab66](https://community.mp3tag.de/u/wab66)\ **Post date:** [September 11, 2006, 2:11pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/3 "2006-09-11T14:11:59Z")
Hey Dano, this seems to be quit good but ![:huh:](https://community.mp3tag.de/uploads/default/original/1X/f15ee73c0fd9ec3b0db7481f0558638f8ee224ce.gif ":huh:") unfortunatelly I still have a few results which seem to belong to the ' which is interpreted as a space so that the rest is interpreted a lower case word . Examples: Non C'e I'll Follow The Sun C'mon People And could you explain the structure with a few words 😉 Thx for the fast response. ![:music:](https://community.mp3tag.de/uploads/default/original/1X/2ba05d1ade5eb0d15fc173be6f717dbe63890a70.gif ":music:") ![:music:](https://community.mp3tag.de/uploads/default/original/1X/2ba05d1ade5eb0d15fc173be6f717dbe63890a70.gif ":music:") Andreas ---
**Author:** ![dano](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dano/32/6_2.png) [@dano](https://community.mp3tag.de/u/dano)\ **Post date:** [September 11, 2006, 2:49pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/4 "2006-09-11T14:49:06Z")
\b is a word boundary. Here is a definition of it: > [@](#): > > There are four different positions that qualify as word boundaries: > > ``` > * Before the first character in the string, if the first character is a word character. > * After the last character in the string, if the last character is a word character. > * Between a word character and a non-word character following right after the word character. > * Between a non-word character and a word character following right after the non-word character. > > ``` \l simple stands for a lower character. If you don't want that ' is a word boundary you must define your own: (^| )\l+\b That would be a simple example that says that a word can start either if it is the first character or if there is a space before it. ---
**Author:** ![wab66](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/w/c77e96/32.png) [@wab66](https://community.mp3tag.de/u/wab66)\ **Post date:** [September 11, 2006, 3:30pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/5 "2006-09-11T15:30:39Z")
Hey Dano, thanks, that works perfectly for a first approach to find german songs (which usally contain Umlaute or/and lower case words in title or artist). Than I can tag them easily. Do you have a link for the other options and their explanation. Right now I worked with the script options for retagging. Thanks once more for this super fast solution. 😃😃 Andreas ---
**Author:** ![dano](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dano/32/6_2.png) [@dano](https://community.mp3tag.de/u/dano)\ **Post date:** [September 11, 2006, 4:24pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/6 "2006-09-11T16:24:46Z")
What do you mean by options? ---
**Author:** ![deckard](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/bbce88/32.png) [@deckard](https://community.mp3tag.de/u/deckard)\ **Post date:** [November 27, 2013, 9:06pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/7 "2013-11-27T21:06:15Z")
> [@dano](#): > > \b is a word boundary. > Here is a definition of it: > > \l simple stands for a lower character. > > If you don't want that ' is a word boundary you must define your own: > (^| )\l+\b > That would be a simple example that says that a word can start either if it is the first character or if there is a space before it. I came across this thread as I am trying to do the same thing: filter for any lowercase words in the title. However, I'm not sure how to use "\b\l+\b". Would it be something like this? %\_title% HAS \b\l+\b - OR - %\_title% MATCHES \b\l+\b I've looked over the help files and tried a bunch of different combinations but can't figure out how to get this to work. Any help would be most appreciated. Thanks! ---
**Author:** ![DetlevD](https://community.mp3tag.de/user_avatar/community.mp3tag.de/detlevd/32/123_2.png) [@DetlevD](https://community.mp3tag.de/u/DetlevD)\ **Post date:** [November 28, 2013, 5:37am UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/8 "2013-11-28T05:37:19Z")
> [@deckard](#): > > ... filter for any lowercase words in the title. Mp3tag has in the filter section a preset to ignore case, therefore the regular expression for MATCHES has to be set to switch off ignore case in order to respect case. TITLE MATCHES "(?-i)\b\l+\b" DD.20131128.0737.CET ---
**Author:** ![deckard](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/bbce88/32.png) [@deckard](https://community.mp3tag.de/u/deckard)\ **Post date:** [November 29, 2013, 6:11pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/9 "2013-11-29T18:11:26Z")
> [@DetlevD](#): > > Mp3tag has in the filter section a preset to ignore case, therefore the regular expression for MATCHES has to be set to switch off ignore case in order to respect case. > > TITLE MATCHES "(?-i)\b\l+\b" > > DD.20131128.0737.CET Thank you for the explanation! I ran into the same issue as Wolfgang B, needing to exclude ' as a word boundary. I added dano's bit to the expression, which appears to do what I need: TITLE MATCHES "(?-i)(^| )\b\l+\b" However, even though this works, is it "correct"? Thanks again! ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [February 9, 2026, 12:19pm UTC](https://community.mp3tag.de/t/filter-for-all-titles-with-words-in-lower-case/3757/10 "2026-02-09T12:19:53Z")
Closed on February 9, 2026, 12:19pm UTC