Merge remote-tracking branch 'refs/remotes/origin/master'

README.md

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 [![Platforms](https://img.shields.io/badge/platforms-macos-teal.svg)](https://apple.com/macos) [![Swift](https://img.shields.io/badge/Swift-5.2-orange.svg)](https://swift.org) [![License](https://img.shields.io/badge/License-GPL-blue.svg)](https://www.gnu.org/licenses/gpl-3.0.en.html)
 
-Linnstrument Helper is a SwiftUI app for Mac OS to help make learning the Linnstrument layout a breeze. Currently in 
-a beta stage, Linnstrument helper makes use of the [AudioKit](https://github.com/AudioKit/AudioKit) and [SwiftUI Grid](https://github.com/spacenation/swiftui-grid) frameworks.
+Linnstrument Helper is a SwiftUI app for Mac OS to help make learning the Linnstrument layout a breeze. Just like a bass guitar, the Linnstrument uses [all fourths tuning](https://en.wikipedia.org/wiki/All_fourths_tuning). 
+
+Currently in a beta stage, Linnstrument helper makes use of the [AudioKit](https://github.com/AudioKit/AudioKit) and [SwiftUI Grid](https://github.com/spacenation/swiftui-grid) frameworks.
 
 ## Features