The Apple HomePod went up for pre-order last Friday, the device launches in a couple of weeks on the 9th of February. Apple advertises the device as supporting Apple Music, there is not mention on Apple’s website whether or not the HomePod supports iTunes Match.
Now it looks like the HomePod will support iTunes Match and also it looks like it will support iCloud Music libraries with Siri. The news was confirmed by Apple to Serenity Caldwell from iMore.
Okay, got some HomePod clarification: iTunes Match *and* Apple Music users can access their iCloud Music Library via Siri. 🎊
— Serenity Caldwell (@settern) January 28, 2018
So basically if you use iTunes Match and iCloud Music you will be able to use Siri on the Apple HomePod to play you full music library on the device. The HomePod is launching early next month and it will cost $349 in the US and £319 in the UK.