Private company

Mixed In Key

Logo: Source: http://www.mixedinkey.com, Non-free logo, via Wikipedia3

Windows and Macintosh software

Mixed In Key (also known as MIK) is Windows and Macintosh software that simplifies a DJ technique called harmonic mixing. Mixed In Key analyses MP3 and WAV files and determines the musical key of every file. Knowing the key, DJs can use music theory (such as the Circle of Fifths) to play songs in a harmonically pleasing order.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2006Founded1

Mixed In Key (also known as MIK) is Windows and Macintosh software that simplifies a DJ technique called harmonic mixing. Mixed In Key analyses MP3 and WAV files and determines the musical key of every file. Knowing the key, DJs can use music theory (such as the Circle of Fifths) to play songs in a harmonically pleasing order. The software helps to solve Mixed In Key's software was developed to provide a Windows interface for the toner key detection algorithm created by zplane.development. The original tONaRT algorithm created by zplane.development had a simple Windows-based demo which could not process multiple audio files at once. Yakov Vorobyev created a simple C#.NET Windows application that could batch-process multiple files. he first version was released on March 25, 2006. Soon after, work on Mac OS X began, and on June 4, 2006, the first version of Mac OS X was released.2

Products and brands

All three suites of Mixed In Key's software, Mixed In Key, Platinum Notes, and Mashup, are available for both PCs and Macs.

Mixed In Key is the original software from Mixed In Key LLC, the software analyzes the harmonies and melodies of the selected music. For every track, it shows the musical key and helps choose tracks that are harmonically compatible with each other. Mixed In Key works with Traktor, Serato, Pioneer CDJs, Ableton Live and all other DJ apps. The software is used by the likes of David Guetta and Kaskade. Other artists include Paul van Dyk, Armin van Buuren, Sebastian Ingrosso, Sasha, Grammy-winning producer Ali "Dubfire" from Deep Dish, Pete Tong from BBC Radio 1, trance producers Blank & Jones, Above & Beyond, High Contrast, Nick Warren, and BT.

Platinum Notes was the second software suite release. It allows the user to drop in music files. Platinum Notes then makes the tracks acoustically perfect, by using studio filters to process the files. The software corrects for pitch, improves volume, and makes the file ready to play anywhere.

Mashup is Mixed In Key's most recent addition to its offerings. The software helps beatmatch tracks and saves results to new MP3 files. Files then can be made into a podcast.

From Wikipedia’s article on Mixed In Key, shared under CC BY-SA 4.0.4

Timeline

  1. 2006Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4