In a blog post (that has since been removed), Apple Music senior director Ian Rogers— the former CEO of Beats Music— noted that Apple will make iOS 8.4 available at 8 AM Pacific Time on Tuesday, two hours earlier than the company's typical release time, in order to allow users to hear the inaugural broadcast of Apple's new Beats 1 radio programming and begin using Apple Music.

The new Beats 1 begin global broadcasting one hour later, beginning 24/7 original live programming starting with former BBC DJ Zane Lowe. A series of celebrity appearances including Elton John, Dr. Dre, Pharrell and Drake will be incorporated into music sets and industry interviews.

Beats 1 will be free to Apple Music users signed in with their Apple ID. The Apple Music app also includes on-demand, streaming access to over 30 million tracks, a service that requires a subscription. Apple is offering a free three month trial to users who sign up, and ongoing subscriptions will be priced at $9.99 per month for a single user or $14.99 for a family of up to six people.

Apple Music also features Connect, a social feed where artists can share notes, photos, videos and other material with their fans.

Apple's iTunes page on Facebook is hosting an event invite that states "Starting June 30th, experience all of Apple Music by updating your phone to the latest iOS. How to: Settings App -> General -> Software Update. We can't wait to share our new product with you, but first things first, update! This is Apple Music. And it's just the beginning. Learn more at http://apple.co/music."

On that site, Apple notes that Apple Music for iOS will require the new Music app delivered in 8.4, that Apple Watch can be updated from a paired phone, that iTunes on Macs and PCs will be updated, and that Apple Music for Android devices will be "coming this fall."

While Roger's blog post has since been removed, iTunes head Eddy Cue has stated on Twitter that Apple will be releasing a new developer build of iOS 9 to enable Apple Music. Cue also tweeted Apple plans to increase iTunes Match to support a larger scan and match library, starting at the current 25,000 track limit "for launch and working to get to 100k for iOS 9."

Cue also noted that Apple Music has the "same basic features of uploading the tracks in your library" as today's iTunes Match service. Additionally, in response to the Twitter question,"will my Beats subscription playlists transfer to Apple Music?" Cue stated, "yes, there will a Beats app update to migrate to Apple Music."

Apple to buzzfeed news: "we're working together to make #AppleMusic available on Sonos before the end of the year." — John Paczkowski (@JohnPaczkowski) June 28, 2015