Target open window if already open

I have two menus:

One for the the home page that uses target _blank to open menu item in a new window or tab.

The home page has a music stream in it – and I did not want the stream to be interrupted – henc the home page opens all links in new tabs.

The other menu conditionally opens in all the other pages and posts (not on the home page).

However, the issue I found is that when someone is on any other page (not the home page) – and they click the ling to go home.. we now end up with two home page tabs open in the same browser – hence.. two streams playing simultaneously.

I’ve been looking for a way to target an already open window (if one exists) from these pages – to prevent having duplicate streams open in multiple tabs or windows.

Your plugin seems to come closest (of them all) to being able to address this.
Any thought or suggestions?

The page I need help with: [log in to see the link]