Amazon Launches Lossless "Hi-rez" HD Music Service

I’ve been using Amazon Music Unlimited, and pay $79/year. I control the program with my phone.

HD is $5 more a month.

Free trial for current and existing customers. I’m trying to upgrade now, but the webpage is very busy according to customer service.

I’m looking forward to trying it out

So download Amazon Music on your iPhone or iPad and you can control the new HD Music on your main computer?

Same question.  Can I sit in the listening chair and use my Android tablet to control the laptop that is feeding data from this Amazon service to an external DAC?  (Like JRiver's JRemote)

How does this work ? With Tidal you have an app  if I could stream this 
from my computer through my dac to Ludspeakers  Thst is Hirez 
 not listening through an iPad . Please advise .thanks much.

Already a Prime member.
Looking forward to trying it.

JD