---
title: ranges
framework: musicunderstanding
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: musicunderstanding/keyresult/ranges
---

# ranges

The detected key for each time range.

## Declaration

```swift
let ranges: [MusicUnderstandingSession.RangedValue<KeyResult.KeySignature>]
```