A pitch pipe for finding a starting note, part of forScore's Duo updates
Does Onyx: Pitch Pipe work on iPhone Duo?
Yes, the developer says so: forScore's October 8, 2026 announcement includes Onyx: Pitch Pipe in its iPhone Duo updates. The App Store notes mention only the latest Apple devices.
- Developer claimedThe developer, in an announcement on its website on October 8, 2026, which includes Onyx in its iPhone Duo updates without describing the layout. The App Store release notes for version 4.5 (released October 8, 2026) mention only the latest Apple devices, not the Duo.
Adapted for the fold
We're waiting on details of exactly what Onyx: Pitch Pipe changes for the fold. Are you the developer? Tell us.
About Onyx: Pitch Pipe
Onyx: Pitch Pipe plays a starting note. forScore’s October 8 announcement lists iPhone Duo support for the apps in its Music Box membership, which include this one. The App Store release notes for version 4.5 don’t name the Duo or describe a layout.
Related guides

The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.

Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your app?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
<a href="https://foldhunt.com/apps/onyx-pitch-pipe/"><img src="https://foldhunt.com/badges/featured-on-foldhunt.svg" alt="Featured on FoldHunt" width="220" height="54"></a>Need to update the listing? Email the editor.
Sources: forScore: iPhone Duo announcement, October 8, 2026 (forscore.co) · Onyx: Pitch Pipe on the App Store (apps.apple.com) · Onyx: Pitch Pipe in Apple's App Store records (itunes.apple.com) · forScore's apps and Music Box membership (forscore.co)