Skip to main content
Version: Stable 3.x

Playlists and smart blocks

Creating a new playlist

You can create a new playlist on the toolbar of the Playlists page.

Enter a Name and Description for the playlist, then click the Save button. Setting good quality metadata here will help you find the playlist using the search box later, so you should be as descriptive as possible.

Adding content to a playlist

With a playlist open, drag and drop items from the search results on the left into the playlist on the right. Jingles and voice tracks can be added before, after or between music items.

After adding files to the playlist, the total playlist time is displayed in the top right corner. The duration of an individual file is shown in each row of the playlist in a white font, and beneath this figure the time since the beginning of the playlist is displayed in a smaller light grey font. This elapsed time figure can be used as a time check for voice tracks, although this option may limit the re-usability of the voice track.

To audition a playlist file in your web browser, click the white triangle button on the left side of its row. (If the format of the file isn't supported by your browser, the triangle in this button will be greyed out). If audition of the file format is supported, a pop-up window will open, with the playlist starting at the file you clicked.

Click the small white x icon on the right hand side of each row to remove a file from the playlist. You can also drag and drop files to re-order them, or click the Shuffle button to re-order files automatically.

When your playlist is complete, click the New button in the top left corner to create another playlist, click the close icon (a white cross in a black circle) in the top right corner, or browse to another page of the LibreTime interface.

If you want to edit the playlist content or metadata later, you can find it by Title, Creator, Last Modified date, Length, Owner or Year using one of the search tools on the Library page. Click the playlist in the search results list, and then click Edit from the pop-up menu. You can also Preview the entire playlist in a pop-up audition window, Duplicate or Delete one of your playlists from this menu.

Auto loading playlists

LibreTime will schedule tracks from a selected playlist an hour before a show is scheduled to air. This is a great way to automatically schedule weekly shows which are received via. podcasts.

Creating a Smartblock

Smart blocks are automatically filled with media files from the LibreTime library, according to the criteria that you specify. This feature is intended to save staff time, compared to selecting items for a playlist manually, and can be used to schedule shows that operate in a consistent format.

To create a smart block, click the Smartblocks button on the left sidebar, and select New from the toolbar. Like a playlist, smart blocks can have a title and description, which you can edit. This helps you find relevant smart blocks in searches.

Fill out the smart block's Name, Search Criteria, and Limit to sections. The search criteria can be any one of LibreTime's metadata categories, such as Title, Creator or Genre. The modifier depends on whether the metadata in question contains letters or numbers. For example, Title has modifiers including contains and starts with, whereas the modifiers for BPM include is greater than and is in the range.

If you have a large number of files which meet the criteria that you specify, you may wish to limit the duration of the smart block using the Limit to field, so that it fits within the show you have in mind. Select hours, minutes or items from the drop-down menu, and click the Generate button again, if it's a static smart block. Then click the Save button.


Smart Blocks by default won't overflow the length of a scheduled show. This is to prevent tracks from being cut-off because they exceed the time limit of a show. If you want a smartblock to schedule tracks until it's longer than the Time Limit you can check "Allow last track to exceed time limit" (helpful for avoiding dead air on autoscheduled shows).

You can also set the smart block type. A Static smart block will save the criteria and generate the block content immediately. This enables you to edit the contents of the block in the Library page before adding it to a show. A Dynamic smart block will only save the criteria, and the specific content will be generated at the time the block is added to a show. After that, the content of the show can be changed or re-ordered in the Now Playing page.

Click the plus button on the left to add OR criteria, such as Creator containing beck OR jimi. To add AND criteria, such as Creator containing jimi AND BPM in the range 120 to 130, click the plus button on the right. (The criteria aren't case sensitive). Click Preview to see the results.


If you see the message 0 files meet the criteria, it might mean that the files in the Library haven't been tagged with the correct metadata. See the chapter Preparing media for tips on tagging content.

If you don't like the ordering which is generated, click the Shuffle button, or drag and drop the smart block contents into the order that you prefer. You can also remove items or add new items manually from the Library. Changes to static smart block contents are saved automatically when you add items, remove or re-order them, or click the Generate button. Click the Save button in the upper right corner to save any changes to smart block criteria.

By default, a smart block won't contain repeated items, which will limit the duration of the block if you don't have sufficient items meeting the specified criteria in your Library. To override the default behaviour, check the Allow Repeat Tracks box. The Sort tracks by menu offers the options of random, newest or oldest items first.

Smart blocks can be added to shows in the same way as a manually created playlist is added. Smart blocks can also be added to one or more playlists. In the case of a playlist containing a static smart block, click Expand Static Block to view the contents. For a dynamic smart block, you can review the criteria and duration limit by clicking Expand Dynamic Block.

Once created, smart blocks can be found under the Smartblocks tab and refined at any time. They can be re-opened by right-clicking on the smart block and selecting Edit from the pop-up menu.