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How to add track numbers to ID3 tags?


ID3 tags are special chunks of information inside MP3 files that store such useful details about songs as title, artist, album, etc. Audio files in formats other than MP3 have similar chunks of information, too, but they are called FLAC tags, APE tags, OGG comment, and so on, depending on the format. In general, they are called tags.

Track number is a small field in tags that stores information about the position of the given track in the album / on the CD. Sometimes, the total number of tracks is also saved into the track number field, in which case track numbers look like 3/12, where 12 is the total number of tracks. Track numbers allow sorting all songs of an album properly, in the order provided by the artist / record label.

You can easily fill out the track number field of your files with a tag editor like mp3Tag Pro.

Step 1: Download and install the program.

Download mp3Tag Pro to your computer and start the file. Follow on-screen instructions to install the tag editor.

Step 2: Start the program. Select MP3 files.

Launch mp3Tag Pro. The main window of the program has several areas (panels).

Select files to tag

In the "Folders" area on the left, select the folder where your music files are stored. The files themselves will appear in the main area on the right.

On the screenshot above, we can see that the "Track #" column is empty. There are no track numbers, although our MP3 files are sorted correctly. This happens because of the fact that track numbers are available in the filenames.

To select all files in the folder, click the green checkmark button in the upper right corner (1).

Now, click the "Generate tags" button below the file list (2).

Step 3: Generate track numbers and save them into MP3 tags.

A new window will open. Make sure that the "Tag generator" tab is selected on the right (top).

Generate track numbers

Remove checkmarks from all boxes, except "Track #". This will ensure that you will not destroy any existing tags.

Now, click the highlighted (on the screenshot) button next to the "Track #" field (1). This opens a small window (2). You can click "OK", if you want your track numbers to start with 1, otherwise enter a different number.

Finally, click the "Generate tags" button (3). This will save the newly generated track numbers into files.

This method works only if your files are in the correct order.

Alternatively, it is possible to extract track numbers from filenames:

Extract track numbers from filenames

After saving tags, we can close the window. Now our files have track numbers in their ID3 tags:

Track numbers were filled out

The free trial version of mp3Tag Pro can be used for 30 days. It does not have any limitations in regards of the described feature.

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