23 Jan 2015
YouTube Music Key is not just for YouTube's mobile apps. One of its feature is also available if you use YouTube's desktop site: ad-free music videos. You'll notice the "ad-free" label next to the video title. Mouse over the label and you'll see this message: "Your YouTube Music Key subscription lets you play this video without ads."
"Subscribe to YouTube Music Key and you'll be able to listen to music without seeing or hearing ads. Ads won't be shown before or during eligible music videos you watch on youtube.com, and music videos and playlists will play continuously on your mobile device, without interruption. You will still see ads on other YouTube videos, however. The Ad-free badge tells you that a video will be ad-free," informs YouTube.
23 Jan 2015 3:35pm GMT
YouTube experiments with a slightly different interface that uses rounded icons for channels and moves the title and buttons like "add to" and "share" to the right.
Here's an image that shows both the experimental interface and YouTube's regular UI:
YouTube's mobile apps already use rounded icons, just like Google+ and Google's navigation bar. "If your Channel is merged with a Google+ profile or page, then your YouTube Channel Icon and your Google+ Profile Image are synched," informs YouTube's help center.
23 Jan 2015 3:06pm GMT
21 Jan 2015
An important downside of YouTube Music Key is that YouTube treats music videos just like Google Play Music songs. You can't play music videos on 2 different Android/iOS mobile devices when using the YouTube app and the same Google account.
Let's say I play a YouTube music video on an iPad and then try to play another music video on a Nexus 5. YouTube shows this message: "Playback paused because your account is being used in another location". That means I can't play YouTube music videos on multiple mobile devices at the same time. This is strange, especially when you realize that YouTube Music Key is only available in the Android app.
If I sign out, I can play music videos, but YouTube Music Key features are disabled (background playing, offline caching, no more ads). I can also play music videos in Chrome or other mobile browsers, where YouTube Music Key features aren't available.
Google Play Music has a similar limitation: "If you play music on multiple devices at the same time using the same account, playback will be paused so you can choose which device you'd like to use. To help ensure uninterrupted playback, make sure you're listening to music using one device or computer at a time."
Maybe it would be a better idea to enable Music Key on a single device at a time and disable its features when using other devices. This way, you could still use the YouTube app and play music videos just like any other videos.
21 Jan 2015 7:06pm GMT