# Not able to read the notation key **URL:** \ **Category:** Support\ **Created:** [November 22, 2021, 1:46pm UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193 "2021-11-22T13:46:53Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![bomm](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/b/53a042/32.png) [@bomm](https://community.mp3tag.de/u/bomm)\ **Post date:** [November 22, 2021, 1:46pm UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193/1 "2021-11-22T13:46:53Z")
Hi everyone, First of all thank you for a great software and all the help from this forum. Until now, I've not had to post due to the quality of solutions. Now, I'm stuck. I'm wanting to add the notation key in the title amongst others. Using the format string "%title% BPM:%bpm%" that worked fine This what I have done until now: ![image](https://community.mp3tag.de/uploads/default/original/2X/3/3212c74e952b931923c317ed5735802db8279a2a.png) ![image](https://community.mp3tag.de/uploads/default/original/2X/a/ad941a7a38b98e1061f7cae9801cfc8f07332d35.png) ![image](https://community.mp3tag.de/uploads/default/original/2X/c/cff0e85b8ba1cb81af00b709de315558d107b067.png) I'm bewildered, it seems to me, I may be wrong, but mp3tag can not read the notation key. If anyone could advise me what I'm doing wrong. Thank you. Keep safe everyone. ---
**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:** [November 22, 2021, 1:51pm UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193/2 "2021-11-22T13:51:33Z")
See the help on a list of supported fields: > **[Tag Field Mappings – Mp3tag Documentation](https://docs.mp3tag.de/mapping/)** > > Overview of all available tag fields, their names in Mp3tag, and how they are mapped to the internal structures of the different tag formats. Mp3tag is the universal Tag Editor. I think that the field is called INITIALKEY. BTW: The dump of the tag panel is missing the vital part of which field name you used. The visible label can be anything. ---
**Author:** ![bomm](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/b/53a042/32.png) [@bomm](https://community.mp3tag.de/u/bomm)\ **Post date:** [November 24, 2021, 10:50am UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193/3 "2021-11-24T10:50:58Z")
Thank you. In the haste to apply this I forgot to thank you. That did resolve it. Thanks. I did not understand "The dump" here: "The dump of the tag panel is missing the vital part of which field name you used. The visible label can be anything." Could you please clarify. ---
**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:** [November 24, 2021, 10:54am UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193/4 "2021-11-24T10:54:36Z")
> [@bomm](#): > > The dump I referred to the (screen)dump. That picture only shows the list of the elements in the tag panel but not the details for the element for key - which would have been the label plus the referenced field. ---
**Author:** ![bomm](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/b/53a042/32.png) [@bomm](https://community.mp3tag.de/u/bomm)\ **Post date:** [November 26, 2021, 10:13am UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193/5 "2021-11-26T10:13:39Z")
Thank you for the clarification. I'm tri-lingual and master of none. 😉 ---
**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, 12:29pm UTC](https://community.mp3tag.de/t/not-able-to-read-the-notation-key/55193/6 "2026-02-09T12:29:32Z")