5ths Machine

2.0.1

Lucy Hudson

5.00

1 reviews

$1.99

5.00 · 1 reviews

Download from the App Store

About 5ths Machine

5ths Machine is an overall app developed by Lucy Hudson.

How many times has 5ths Machine been downloaded?

What is the rating of 5ths Machine?

5ths Machine is rated 5.00 out of 5 stars, based on one rating ratings.

Is 5ths Machine free?

5ths Machine costs $1.99 to download. The APK download size is 18.19 MB. The latest version available is 2.0.1. The last update was on January 2, 2026.

What are the requirements for 5ths Machine?

The app has a content rating of Everyone. The app has been available on Google Play January 2022.

Description

Think you know your key signatures cold? Answer this: which key has 41 sharps?

The equal temperament system is a circle with 12 positions, just like a clock. And, just like on a clock, the hands keep going around and around forever. The key signature of 41 sharps is theoretically consistent with the Western diatonic system ― learn why, and learn how to find out what key it is. The Background Information and the Quiz Tips explain the system in detail, and Chronology puts it all in perspective.

Enjoy the “Perpetual 5ths Machine Boogie” while key signatures you’ve never seen before pass by on parade. Then, buckle down and solve the Quiz questions. NOW you understand music theory the 5ths Machine way!

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More data about 5ths Machine

Price	$1.99
Rating	5.00 based on a single rating
Ranking	Not ranked
Version	2.0.1
App download size	18.2 MB
Suitable for	Everyone

Alternative downloads for the 5ths Machine app

Changelog of 5ths Machine

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Developer information for Lucy Hudson

Lucy Hudson

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Technologies used by 5ths Machine

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