What Sonos kit do you have? How are you connecting or streaming audio from your music/video source to your Sonos? What platform is that running on? Your profile says you have an old Connect which has no voice control. Have you set up your Sonos system on your network? If you have a Connect, have you connected speakers to it? 

Not sure I actually comprehend that post. The Sonos controller isn’t really a “player” of music, it’s just an remote control for the aggregation application which runs on the Sonos devices. So, you can’t add any “Sonos music” because there isn’t any. It’s only playing music from other sources, be that the internet via a stream, local music on your device, or an NAS. 

Unless this is just an advertising post for that application you mention. 

I have sonos Portable set kit.

This is the method that I’m Applying to connect.

1. Open the Sonos app.
2. From the Settings tab, tap Services & Voice.
3. Under Music & Content, tap Add a Service.
4. Tap the service you would like to add.
5. Tap Add to Sonos.
6. Follow the on-screen instructions to add the music service account.

*Moderator Note: Modified in accordance with the Community Code of Conduct.*

I see you’re posting links now, which suggests you’re not actually needing help. I’ve flagged your post for moderation by Sonos, but you’ve not responded to my post at all. There is no music stored in Sonos, all Sonos does is play music from other places. 

No, I do not mean to add a link just for your understanding so that you can get my main point easily.

Any Update regarding Audio track which issue I’m still facing?

Yes, This is the right method you are applying, So why are you still facing this issue? Is it not fixed yet?