Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.
Download on the App StoreAudiobus is the app that makes the rest of your setup better.
IOS 11 Bugs !! Maybe I can’t connect to the App Store.
I’m getting a circle of death trying to connect to the App Store in the last 30 minutes 
with iOS 11. My other iPad is on 10.3 and is finding the store ok so it’s not the internet. I tried a hard reset on iPad Pro 9.7 Pro still no joy.
Comments
I got the same, it connected fine earlier today...it is a problem with the store itself perhaps...I just tried again and it connected to the updates fine but now getting the ring when just trying to browse apps.
Glad it’s not just me, must be a heavy load at the store.
You could try signing out then back in.
There’s also an iOS issue where it won’t connect if the server/device times don’t align, which can be resolved by switching off automatic time setting and setting it manually.
Ok will try that thanks
Tried both methods and that’s sorted it cheers
I had a problem updating apps earlier, was really slow.
I have connected a few times throughout today with no problems...and no changes made this end...so it must either be issues with the store itself or just heavy load....
I faced same issue on my iPhone 6 Plus but i fixed it by manually settings date and time and resetting all settings. Follow the guide mentioned here https://www.howtoisolve.com/cannot-connect-to-app-store-ios-11-iphone-ipad/ and it worked like a charm for me.
I had the same problems yesterday, in fact I was so pissed off I started a thread to see if anyone was having the same issues
Same here.. Tried all most everything but it didn't fixed but thanks to indabaa for suggesting few troubleshooting methods to solve this issue.
It happened to my iPhones even on previous iOS versions. In that case I just do a hard reset of the device.
I faced this problem after upgrading my iPhone to iOS 11. But after turn on my cellular data for the App Store, I solved this annoying issue. If you still facing this problem check out these two methods to fix app store cannot connect error.