How-to Guide: Captain Deep.

Captain Deep is designed to integrate with Captain Chords to create bass-lines which complement the chord progressions created in Captain Chords. As such, Captain Deep should be opened while there is an instance of Captain Chords connected in your DAW.

Opening Captain Deep in your DAW

Select ‘Captain Deep’ from your AU or VST Instruments folder in your DAW. Add it to a new MIDI channel.

Connecting to Captain Chords

  • Choose option to ‘CONNECT’ to Captain Chords. Connecting to Chords

Captain Deep is designed to follow the chord progression created in Captain Chords for each individual tab, ‘VERSE’, ‘PRE CHORUS’, ‘CHORUS’ or ‘DROP’. Therefore, changes in Captain Chords’ Pre-Chorus tab will affect the notes in Captain Deep’s Pre-Chorus tab, too.

Song segment tabs

Jamming live with Captain Play

Similar to Captain Chords, Captain Deep can also be played live using the Captain Play tab.

To start recording, press Space-bar. You can clear your recoring by pressing Clear next to the MIDI window.

  • Use keys A – J to trigger individual notes (pitches) within your chosen key & scale.
  • Keys above and below row A – J will trigger the notes an octave above or below.
  • Bracket keys [ ] will move the four octave range up or down.
Play Deep

There are additional features within the Play tab in Captain Deep:

  • Key and Scale. You can choose any key and scale, unrestricted by Captain Chords.
  • Quantize. You can set the degree of quantization applied to your recordings in Play. Choose a quantization amount, the step-ratio and whether Note Start, Note End or both are affected.
Play Deep

Octave, shape and rhythm

When working inside tabs ‘VERSE’, ‘PRE CHORUS’, ‘CHORUS’ or ‘DROP’, the octave, shape and rhythm can be modified to taste.

Octave, Shape, and Rhythm dropdowns
  • ‘OCTAVE’ – Use the arrow keys to select the desired octave between 1st & 7th.
  • ‘SHAPE’ – Shape allows control over the progression of the bassline relative to the chords being triggered in Captain Chords. ‘FOLLOW THE CHORDS’ will force Captain Deep to play the bass-notes of each chord played in Captain Chords. ‘OPPOSITE MOVEMENT’ will force Captain Deep to play an alternative bassline progression based other notes within each chord and the key & scale. ‘MINIMUM ADJUSTMENT NECESSARY’ will play the bassline using only small leaps and minimal changes of note. ‘DON’T CHANGE MELODY’ Captain Deep will play only the root note of the key with no changes throughout the progression.


The Rhythm menu contains dozens of rhythmic patterns for your bass-line. Many have been taken from hit tracks across a range of genres. Rhythms are categorized Basic, Simple, Complex or New.

Choose a rhythm, and Captain Deep will play the root notes from Captain Chords in the selected rhythm template.

Deep Rhythm

Sound presets and effects

Captain Deep has numerous sound presets and effects to choose from.

Effects Deep

Using VST Plugins inside Captain Deep.

In Captain Plugins 5, you can use your own VST Plugin Instruments to directly route your melodies through your choice of soft-synths.

CP5 VST Insruments
  • Simply press ‘VST Plugins’ to get started. Captain Plugins will then ask if you want to scan your VST folder. Once scanning is complete, the available plugins will be displayed in the newly created VST Plugins menu. To select one, simply double-click its name.

    You will now see your VST Plugin Instrument’s window, not Captain Deep. Press ‘Play’ and hear your melodies play back, while you search for your perfect sound!

lightbulb_outline Tip: We have added compatibility with most well-known VST Plugin Instruments, from manufacturers such as Arturia, Native Instruments, U-He and more. This list will continually reviewed, so if a plugin of yours isn’t displaying, please email us at and we’ll look into it.

Using Captain Deep with 3rd party instruments

You can route any MIDI-enabled software or hardware synth through Captain Deep. This allows you to use Captain Deep’s MIDI generator to playback sounds from 3rd party synths.


To achieve this, set Captain Deep to VST Output instead of Audio. Then, create a new MIDI channel for your 3rd-party synth, and set Captain Deep as the MIDI source. The exact procedure for this varies between DAWs.

NB: To route 3rd-party synths through Deep, you must use Captain Deep as a VST, not AU. For Logic users, use Captain Deep as a MIDI FX unit.

Deep MIDI IN 2

Using the MIDI Input tab

You can use Captain Plugins’ on-board sounds as a soft-synth by using the MIDI Input tab. Incoming MIDI signals, whether from a MIDI clip or keyboard, will trigger Captain Plugins’ sounds. You can choose the sound, adjust FX, volume and filter. However you cannot use Captain Plugins’ core functionality.



If your Captain Deep has any issues connecting to Captain Chords, double-check that it is still connected in Settings. The top menu marked ‘Connected To’ reveals whether or not you are connected to Captain Chords. Furthermore, if you have used more than one instance of Captain Chords at any time in your project, and Deep is not playing the right notes, check to see if it is connected to the correct instance of Chords.

If you have any functionality issues, check you are on the latest version, also in Settings.

Drop us an email any time at for all support enquiries.

lightbulb_outline Tip: If one of your bass-lines is playing unexpectedly, while you have Captain Deep closed, check that you have ‘Keep Playing Audio When Close’ disabled Keep Playing Audio CP5 – if you’re using a 3rd party plugin, you’ll need to return to the Audio window, disable the button, and go back to your 3rd party plugin tab.

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