# Copy from parenthesis in one field (title) to a different field (composer)

**URL:** https://community.mp3tag.de/t/copy-from-parenthesis-in-one-field-title-to-a-different-field-composer/51297
**Category:** Support
**Created:** [December 22, 2020, 2:11pm UTC](https://community.mp3tag.de/t/copy-from-parenthesis-in-one-field-title-to-a-different-field-composer/51297 "2020-12-22T14:11:01Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [December 22, 2020, 4:07pm UTC](https://community.mp3tag.de/t/copy-from-parenthesis-in-one-field-title-to-a-different-field-composer/51297/6 "2020-12-22T16:07:07Z")

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As I said: it takes the last pair of opening an closing brackets - and having said that, it implies that there is a "first" pair of them.  
Due to the greadiness of the `*` repeater, an expression like `((.\*)) would include everything in brackets, with source  
Cold (ft Future) (R3hab & Khrebto, KSHMR Remix)  
the result would be  
(ft Future) (R3hab & Khrebto, KSHMR Remix)

To be honest: use my suggestion on the files that have a closing and an opening bracket close to each other : ) (  
that should work.  
For all the other files that have only a single pair of brackets, use  
Format string: `$regexp(%title%,'.* \((.*)\)',$1)`  
and then replace every word that you don't want with nothing using a simple replace action (i.e. delete it).

Why is all this so tricky?  
The data in the field TITLE is not only the title but also contains a featured artist and a version description.  
Unfortunately, the ID3 standard does not offer dedicated fields to structure this data.  
The brackets are no proper field separators as one cannot tell from the brackets what kind of data they separate from the rest.  
I, personally, use `<>` to enclose the featured artist and `[]`to enclose the version.  
This leaves the round brackets for the title data.  
And with these separating, dedicated markers, it is much easier to get the required piece of data from the title string.  
So coming back to the thread in

> [@Complex manage featured artists, moving & copying between fields](https://community.mp3tag.de/t/complex-manage-featured-artists-moving-copying-between-fields/51282/):
>
> I'm a few steps away from finiliasing my actions template to organize my library. I spend the past two days on the forum trying to figure it out the below to no avail. Move (not copy) featured artists from title to artist filed. Titles I might have: These Days (ft Jess Glynne, Macklemore & Dan Caplen) (R3hab Remix) Result: Artist tag: Jess Glynne, Macklemore & Dan Caplen Result: Title tag: These Days (R3hab Remix) These Days ft Jess Glynne, Macklemore & Dan Caplen (R3hab Remix) Resul…

it might have been better to use other brackets than the round ones to add the featured artist.

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