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Mixed In Key’s award-winningMusic Composition Plugins

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Available for Mac and Windows.

Comes with a 30-day money back guarantee. Created by Mixed In Key.

In a league of their own.

Captain Plugins are music composition plugins specifically designed to aid writing music to a level in which no DAW, or MIDI VST plugin has achieved. Captain Plugins allows you to use your favourite DAW as the foundation of your studio set up. You can then add purpose-built plugins to create MIDI chord progressions, melodies, basslines and beats. These musical creations can then be dragged and dropped directly within your DAW for further production.

Captain Chords.

Captain Chords is the heart of Captain Plugins. It allows you to write chord progressions in any key and scale including many exotic scales. Captain Chords will help you build your own chord progressions from scratch, discover the sound of different chords and how to make them interact in a harmonically pleasing manner – regardless of your chosen music genre. You can automatically minimize the leap between chords, choose inversions, add 7th, 9th or suspended chords. You can add passing chords, and add more complexity to each chord by adding more notes. This allows for complex chord voicings in seconds.

Find out about all of Captain Chords’ features here.

Captain Melody.

Captain Melody is one of the most unique and idea inspiring music composition plugins to ever exist. With multiple tools to choose from, there are many possible workflows, such as Pegasus. Writing a catchy melody is key to making a successful song. However, it can often be the hardest part to compose. Captain Melody can help turn this task into something fun and inspiring. You can edit MIDI notes inside the plugin. It’s like a mini-DAW running inside your DAW. You can edit your melody and see how it affects the harmonic tension with your chord progression created in Captain Chords.

Find out about all of Captain Melody’s features here.

Captain Beat.

The latest entry to the Captain Plugins set, Captain Beat, makes drum programming fun and inspiring. Fully-featured in a deceptively simple, but familiar, interface; Captain Beat offers mind-blowing sequencing, programming and sound design power. It comes loaded with hundreds of expertly crafted kits and patterns, plus the ability to add your own samples and fine tune each drum sound with multiple envelope, time-effect and pitch parameters.

Find out about all of Captain Beat’s features here.

Captain Deep.

Writing a killer bassline doesn’t have to be a painstaking task. Actually, by writing the harmony and melody first, these elements can be used to outline what the bassline could be. Similar to Captain Melody, Captain Deep also connects to Captain Chords to suggest suitable basslines. These can then be dropped straight to your DAW or further enhanced using the vast number of included preset rhythms.

We reverse-engineered the top bassline sounds from tracks charting on Spotify and Beatport. We made a special sound pack that you can use in your own compositions, and it comes included in Captain Deep.

Find out about all of Captain Deep’s features here.

Captain Play.

Captain Play is like having the live aspects of Captain Chords, Deep and Melody, without all of the sequencing options. This makes it a great stripped down option for if you just want to jam live without going out of key or scale. It’s super-easy to choose any key and scale and play 100% of the correct notes. Try “D Lydian” – it’s easy to play with Captain Play, and it’s more interesting than regular Minor and Major scales. Captain Play will record each take, and once you’re happy with the chords or melody you can simply drag and drop to your DAW.

Find out about all of Captain Play’s features here.

Award-winning music composition plugins.

Captain Plugins helps you write better music, it helps to fill-in gaps of music theory knowledge, while giving you full control of the creative process.

Ensuring all song elements, including drums, are in the correct key and scale is vital to a pro-sounding song. Mixed In Key Studio Edition combined with Captain Plugins helps to ensure your music production is air-tight and pitch-perfect.

Captain Plugins and Mixed In Key Studio Edition

How To Write A Track With Mixed In Key Studio Edition And Captain Plugins

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Compatible with Ableton Live, Logic Pro X, FL Studio and other DAWS. Start using Captain Plugins, Odesi + Mixed In Key Studio Edition right now.


David Guetta

“Captain can inspire you. I’m using it every day and showing my friends. Captain Melody is super convenient for songwriting. I love the color feature that tells you how stable the note is in the scale. It’s also cool to see what melodies are suggested when you are looking for a new idea.”

Dada Life

“I slam this plugin on just to double check that I’m correct with the tuning of my audio.”


“I’m loving Captain Plugins and I used it on two tracks. It’s a super cool plugin. I just love that it promotes inspiration. It’s the perfect spot to get ideas going. I’m always looking for that spark of creativity and Captain always provides that!”

Chus and Ceballos

“If you’re writing chords, this is a must-have plugin. It’s faster than working on the keyboard and you can be more creative and just let your creativity come out.”

Nicky Romero

“I love how easy it is now to see what key your music and samples are playing while working on a track. No more opening different software packages, really love MIK Studio Edition”

Morgan Page

“Captain Chords is an essential tool for modern composing. I love the new strum feature”


“Perfect. That’s all I wanna say. Perfect.”


“Mixed In Key Studio Edition is perfect for music production and to save time in the studio. Very useful plugin and I 100% recommend it.”

Laura Escudé

“This is totally for me. I can take ideas that I play on violin, drop them into Captain Plugins, and come out with a super chordal sequence that I couldn’t come up with on my own.

Captain Plugins will take your music production to the next level.”