KeyFinder

Being a DJ is not all that its cracked up to be, since it is not all about pressing one magical button and music comes out. KeyFinder is a lightweight and intuitive application aimed at Disc Jockeys, as it can help you identify an audio file's music key, which can be used in various harmonic and tonal mixing operations.

The program is quite simple to work with, requiring only that you unzip the archive and run the EXE file that it contains, with no installation process being necessary. Thanks to its portability feature, KeyFinder can be placed on any USB or similar memory drive, allowing you to run on any computer you want, at home or at work, without having to sit through a lengthy installation operation. Moreover, this translates into no additional registry entries on the system you are using KeyFinder on, meaning you can simply remove it by deleting the containing folder.

The application features a basic and far from impressive interface, but this makes it quite approachable for everyone, regardless of their level of experience in working with similar software. It supports drag and drop operations, so all you need to do is drop the audio files that you want to analyze onto the main window of KeyFinder, then press the 'Run Batch Analysis' button. The estimation will be displayed in the 'Detected Key' column, along with other ID tag information from your song.

KeyFinder also features a 'Detailed Analysis' function that allows you to get a visual representation of your song's key in 'Chromagram Colors', which you can select from the dedicated menu, namely 'Izo', 'Mono', 'Pred', 'VBoy' and 'Hack'. The utility supports several audio format, for instance MP3, M4A, MP4, WMA, FLAC, AIF, AIFF and WAV, while also providing support for 'Custom Key Codes'. Optionally, KeyFinder allows you to adjust its functioning parameters. However, it is advisable that you only modify them if you know exactly what you are doing, otherwise you run the risk of affecting its accuracy.

All aspects considered, KeyFinder is a simple yet very efficient piece of software which aims to provide you with the ability to determine the correct music key for one or more songs simultaneously, in just a few moves. This allows you to always know which songs go well together and how you can improve your mixing skills.