Music Caster is a tray music player that lets you cast your local music to a Google Cast device.
On the first run, you will need to click the arrow in your taskbar to see the app icon, you can move it for ease of access. If you have music files in folders other than the home music folder, add them in settings (right click tray icon -> settings).
Download:https://sourceforge.net/projects/music-caster/files/latest/download
Source code:https://sourceforge.net/p/music-caster/code/ci/master/tree/