There are several things you can do to improve the sound quality of music in Zoom - on a laptop. If possible, please use a laptop, not a tablet, for Zoom. You cannot adjust the settings on a tablet.
The latest version of Zoom now includes a feature to substantially improve sound quality for music. Make sure that you are running the latest version of Zoom (version 5.2.2 or later) to take advantage of this new feature. Please refer to this document for how to enable "high fidelity music mode" and "stereo audio" in Zoom.
Be aware that using "high fidelity music mode" and "Use stereo audio" will increase bandwidth demands on your internet connection. Users with a slow internet connection may experience audio drop-outs as a result.
Having an external USB microphone will substantially improve the sound quality to your Zoom meeting. If you do not have an external USB microphone, currently enrolled School of Music students, faculty and staff may request one here.
Having external speakers or quality headphones will improve the sound quality over the built-in speakers of your laptop or mobile device.