You can create custom track groups to organise your music library by genres or eras using Filtered Track Groups. These allow you to dynamically group tracks based on specific criteria such as genre, year, or other track properties.

To create a filtered track group, go to Manage Track Groups and select Filtered Track Group. You can filter tracks using fields like Genre for music genres (e.g., Rock, Pop, Jazz) or Year for different eras (e.g., tracks from the 1980s using "Year >= 1980 AND Year < 1990"). You can combine multiple conditions using AND and OR operators to create complex filters, such as filtering for "Rock music from the 1990s" or "Pop songs with a specific artist". The system will automatically update the track group as you add new music that matches your criteria.