Can't find music channels Directv Stream

Dtv Stream doesn't have music channels. Dtv Satellite does. 

You did listen to them in the past, on DIRECTV satellite. As ludwick577 said they don’t have any sort of music channels on DIRECTV STREAM. Maybe in the future but not right now..

There is no need to have music channels on DirecTV Stream.  Unlike satellite or cable, where the only content you can get is from the carrier (requiring them to give you the music service), Stream is an internet service and uses streaming devices that allow all kinds of other apps. That includes an assortment of music apps (Pandora, Spotify, many others) so you can choose the music service(s) you prefer.  I’m sure that not all of the devices support all of the services, but I’d guess the major services are supported by most. 

I can't find my spotify anywhere.

I can't find my spotify anywhere.

You would have to install it on your streaming device/TV (if available).