# Replace "Genre" tag from a Regex using the folder path **URL:** \ **Category:** Support\ **Created:** [August 2, 2017, 12:34pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193 "2017-08-02T12:34:25Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![DavidLago](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/85f322/32.png) [@DavidLago](https://community.mp3tag.de/u/DavidLago)\ **Post date:** [August 2, 2017, 12:34pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/1 "2017-08-02T12:34:25Z")
Hello, all. If there was a topic about it, I apollogize but I couldn't find (and got blocked from searching too much hahaha). I'd like to have some help/guidance/explanation. I have a folder structure with ~100 itens that looks like these two examples that I copied to the folder "TEST". G:\TEST\Darkthrone [Nor] #Black Metal, Punk Metal\\<4 folders\>: _Darkthrone [1992] A Blaze In The Northern Sky" Darkthrone [1993] Under a Funeral Moon Darkthrone [1994] Transilvanian Hunger Darkthrone [2016] Arctic Thunder_ G:\TEST\Monolord [Swe] #Stoner Metal, Doom Metal\\<2 folders\> _Monolord [2014] Empress Rising Monolord [2015] Vaenir_ Those are the folders, they have their song files from within it. I loaded the whole content of the folder "TEST" under Mp3 tag (all Darkthrone and Monolord album). What I'm trying to do is: **- Replace the field "Genre" with whatever string is after #** For example, for Darkthrone, the genre will become "Black Metal, Punk Metal" For Monolord, the genre will be Stoner Metal, Doom Metal. I tried several tag/tag conversions, using the variable %\_folderpath% and tested some of my very limited REGEX skills, also tried %\_path%, and some other directories variables, also tried to place some %dummy% parameters in several places. I know it's possible, but I couldn't figure out by myself. I wished someone could point it out and explain to me how it works. Thanks. - Dave ---
**Author:** ![stevehero](https://community.mp3tag.de/user_avatar/community.mp3tag.de/stevehero/32/337_2.png) [@stevehero](https://community.mp3tag.de/u/stevehero)\ **Post date:** [August 2, 2017, 1:03pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/2 "2017-08-02T13:03:00Z")
Action format value ![:mt_act:](https://community.mp3tag.de/uploads/default/original/1X/318aa654f7a0c7c178d869991f6e8680b214cfc0.png ":mt\_act:") : ``` Format: GENRE FString: $regexp(%_path%,'.+?(#[^\\\\]+).+',$1) ``` ---
**Author:** ![poster](https://community.mp3tag.de/user_avatar/community.mp3tag.de/poster/32/4881_2.png) [@poster](https://community.mp3tag.de/u/poster)\ **Post date:** [August 2, 2017, 1:29pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/3 "2017-08-02T13:29:23Z")
Action Type: Guess Values Source: %\_parent\_directory% Format String: %dummy% #%genre% ---
**Author:** ![stevehero](https://community.mp3tag.de/user_avatar/community.mp3tag.de/stevehero/32/337_2.png) [@stevehero](https://community.mp3tag.de/u/stevehero)\ **Post date:** [August 2, 2017, 1:49pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/4 "2017-08-02T13:49:36Z")
Parent directory won't work as some of the OPs examples show 2 or 4 folders deep. ---
**Author:** ![DavidLago](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/85f322/32.png) [@DavidLago](https://community.mp3tag.de/u/DavidLago)\ **Post date:** [August 2, 2017, 1:53pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/5 "2017-08-02T13:53:43Z")
QUOTE (stevehero @ Aug 2 2017, 12:03) \<{POST\_SNAPBACK}\> Action format value ![:mt_act:](https://community.mp3tag.de/uploads/default/original/1X/318aa654f7a0c7c178d869991f6e8680b214cfc0.png ":mt\_act:") : ``` Format: GENRE FString: $regexp(%_path%,'.+?(#[^\\\\]+).+',$1) ``` Thank youm @stevehero! That's exactly what I wanted. It seems that the REGEX is way more complex than what I thought. I was going to ask you to explain it to me, but I'll try to figure out myself, since it's not really easy to write the logic down. Thank you! ---
**Author:** ![DavidLago](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/85f322/32.png) [@DavidLago](https://community.mp3tag.de/u/DavidLago)\ **Post date:** [August 2, 2017, 1:56pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/6 "2017-08-02T13:56:07Z")
QUOTE (stevehero @ Aug 2 2017, 12:03) \<{POST\_SNAPBACK}\> Action format value ![:mt_act:](https://community.mp3tag.de/uploads/default/original/1X/318aa654f7a0c7c178d869991f6e8680b214cfc0.png ":mt\_act:") : ``` Format: GENRE FString: $regexp(%_path%,'.+?(#[^\\\\]+).+',$1) ``` Oh, actually, it's still writing the "#" to the genre. I would need to remove it, and start after that. ---
**Author:** ![poster](https://community.mp3tag.de/user_avatar/community.mp3tag.de/poster/32/4881_2.png) [@poster](https://community.mp3tag.de/u/poster)\ **Post date:** [August 2, 2017, 2:12pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/7 "2017-08-02T14:12:35Z")
> [@stevehero](#): > > Parent directory won't work as some of the OPs examples show 2 or 4 folders deep. Where do you see that in the examples? My interpretation of "4 folders" and 2 "folders" is just the amount of folders that are in the parent-directory, not a hierarchy of folders. ---
**Author:** ![stevehero](https://community.mp3tag.de/user_avatar/community.mp3tag.de/stevehero/32/337_2.png) [@stevehero](https://community.mp3tag.de/u/stevehero)\ **Post date:** [August 2, 2017, 2:14pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/8 "2017-08-02T14:14:15Z")
Use: $regexp(%\_path%,'.+?#([^\\]+).+',$1) Just moved the # outside the capture. Maybe your right @poster. Read the OP quickly. ---
**Author:** ![DavidLago](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/85f322/32.png) [@DavidLago](https://community.mp3tag.de/u/DavidLago)\ **Post date:** [August 2, 2017, 2:43pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/9 "2017-08-02T14:43:30Z")
> [@poster](#): > > Where do you see that in the examples? > My interpretation of "4 folders" and 2 "folders" is just the amount of folders that are in the parent-directory, not a hierarchy of folders. Both of you are right. I mean, I didn't say that it was 2 or 4 folders deep, but actually, it's true! some of them (not these ones) are. Haha ---
**Author:** ![DavidLago](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/85f322/32.png) [@DavidLago](https://community.mp3tag.de/u/DavidLago)\ **Post date:** [August 2, 2017, 3:04pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/10 "2017-08-02T15:04:10Z")
> [@stevehero](#): > > Use: $regexp(%\_path%,'.+?#([^\\]+).+',$1) > Just moved the # outside the capture. > > Maybe your right @poster. Read the it quickly. Thanks again, @stevehero. I read your explanation a couple of times. The first part is understandable. I sometimes use these kind of regexps on basic shell scripts, sed commands or simple greps. But that format below still looks very weird for me to understand it easily. I think I need more practice. btw, the last one, worked perfectly! Thanks! ---
**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, 12:26pm UTC](https://community.mp3tag.de/t/replace-genre-tag-from-a-regex-using-the-folder-path/19193/11 "2026-02-09T12:26:55Z")