In order to have a cohesive list of actions behind 3-dots buttons related to audio content, we have detailed the popovers for several use-cases. It answers questions like:

• spacing between elements
• how to deal with multiple items selection vs how to deal with a single item
• what is possible with your own content vs what is possible with remote content
• how to handle items in the queue, in comparison with albums or playlist pages

The mockups are in our Design System.