Will Browser Work Music Play in a Background Tab or After You Close the Laptop?

Switching to another tab does not necessarily stop browser music. Closing the player tab does. Closing a laptop lid may put the computer to sleep, so do not count on sound continuing then. Test these as separate cases before changing browser or power settings.

A hidden tab is not a closed tab

Start a WorkMusic mood by pressing play, then switch to your document. WorkMusic's current track-library player uses browser audio elements for its tracks; it does not deliberately stop playback just because the tab is hidden. The Page Visibility API lets sites detect when a page is no longer visible, but each site decides what to do with that signal. Hiding a tab is not the same as closing it.

Chrome's Memory Saver help lists active audio among the activities that may prevent a tab from being deactivated. That is a Chrome-specific setting, not a promise that audio will survive every browser update, operating-system sleep state, network interruption, or device change. If playback stops while the tab remains open, return to the player and check its play control, the tab mute indicator, and the selected audio output before changing performance settings.

Closing the lid changes the question

Do not use a closed-lid session as a test of background-tab support. Depending on your device's power settings and whether it is connected to an external display, closing the lid may put the computer to sleep. A sleeping computer is not a reliable browser music player. Reopen it, check the sound output, and press play again if needed. Keeping a machine awake solely to maintain music is a choice about battery and power use, not a feature WorkMusic can enable from a web page.

Media controls are useful, not an offline guarantee

WorkMusic supplies track information and play, pause, and stop handlers through the browser's Media Session API. That can expose controls outside the tab on supported devices. MDN's Media Session guide describes controls in notification areas and on some lock screens. Whether you see them depends on your browser and device; their presence does not mean the tab has been saved for offline playback or that sound will continue during sleep.

For a work block, the simplest check is to start a mood, switch to one other tab for a few minutes, and then try your usual lid or screen-lock behavior separately. If the test fails only after the lid closes, changing moods will not fix the power setting.