What is MisomidixBass?

MisomidixBass is a bass MIDI generator for Mac and Windows. It is the bass edition of Misomidix: same engine, one part. It writes a bassline that locks to the kick and follows the harmony. It makes no sound on its own: put it on a MIDI track ahead of an instrument, or drag its MIDI onto your timeline.

Out of sight it generates the drums and the harmonic grid, locks the bass onsets to the kick, and then outputs the bass alone. Locking the low end to the kick is what makes bass and kick read as one instrument instead of two fighting for the same space. The genre decides how the bass moves, not just which notes it uses.

How does generative bass writing work?

A generative bass part is written against the kick and the harmony rather than drawn by hand. MisomidixBass runs the full engine behind the scenes: it generates drums and chords as context, locks the bass onsets to the kick, and writes the line against the progression. The bass onsets lock to the kick is the one musical relationship the engine asserts, not merely produces.

The genre decides how the bass moves, not just which notes it uses. Bass House jumps octaves in short gates, Hip Hop glides its 808s on long gates, and Rock drives eighths lock-step with the kick. Five bass modes are available: follow-kick, root, root-fifth, offbeat and root-plus-octave.

The interface

The MisomidixBass interface with numbered markers on every control: the transport and mode toggles, the genre, key, scale, length and progression menus, presets, snapshots, the pattern code, the six macros, Acid, Roll, Slide and Accent, the generate and export buttons, Fold and the piano roll.
Tap a number to jump to that control.

Controls

Top bar

Top bar section of MisomidixBass
  • 1
    Fire Head: click the flame logo to open the About panel: what the plugin is, who made it, its version and the trademark notices. Click anywhere in the panel to close it.
  • 2
    BPM: the tempo used when no host provides one, as in the Standalone app. In a DAW, the host's tempo is followed automatically.60 to 200 BPM, default 124
  • 3
    Play: the plugin's own transport, used whenever the host isn't driving playback. It is on by default.
  • 4
    Host Sync: follows your DAW's tempo and transport. Switch it off to audition with the plugin's own clock while the DAW is stopped.
  • 5
    MIDI Out: the output gate: when it's on, the generated notes leave the plugin. If it's off, MisomidixBass still runs but nothing reaches your instrument. It is on by default.
  • 6
    Build: regenerates the pattern as an energy build toward the drop: the part becomes a filter riser. It works best on 8 or 16 bars.
  • 7
    Preview: plays the pattern through a built-in preview synth, so you can audition it in place. Route the MIDI to your own instrument for the final sound.

What to write

What to write section of MisomidixBass
  • 8
    Genre: the style the bass is written in. The genre decides how the bass moves, not just which notes it uses: Bass House jumps octaves in short gates, Hip Hop glides its 808s on long gates, Rock drives eighths lock-step with the kick.Tech House, Deep Tech, House, Deep House, Melodic House, Progressive House, Afro House, Organic House, Bass House, Techno, Minimal, Drum & Bass, Hip Hop / Rap, Rock
    Tip The genre decides how the bass moves: Bass House jumps octaves in short gates, Hip Hop glides 808s on long gates, Rock drives eighths with the kick.
  • 9
    Key: the key of the bassline. Key, scale and progression set the roots the line moves between.
  • 10
    Scale: the scale the notes come from.
  • 11
    Loop length: how many bars the loop is.
  • 12
    Progression: picks a specific chord progression from the genre's pool. Any progression lets the genre choose by weight.
    Tip Pick a specific chord progression to control the roots the line moves between. Any Progression lets the genre choose by weight.

Presets, snapshots and codes

Presets, snapshots and codes section of MisomidixBass
  • 13
    Presets: presets store the generative formula, the settings that produce a kind of result, and are saved to disk by name.
  • 14
    Save / Load: Save stores the current settings as a user preset; Load opens a preset file from anywhere on disk.
  • 15
    Clear: empties all four snapshot slots. The pattern you're on is untouched.
  • 16
    Snapshots: four numbered slots for this session. Click + to keep the pattern you're on (it becomes the next number), and click a number to come back to it. Alt-click a slot to store over it. Snapshots are saved with your project.
  • 17
    Undo / Redo: undo and redo cover generating, re-rolls, preset loads, snapshot recalls and imports.
  • 18
    Pattern code: the current pattern as a shareable code. Paste a code in and press Apply or Enter to get that exact pattern back.
  • 19
    Apply / Copy: Apply loads the code in the box; Copy puts this pattern's code on your clipboard. Codes carry a checksum, so a mistyped code is refused instead of loading something else.

Macros

Macros section of MisomidixBass
  • 20
    Complexity: how complex the generated part is.0 to 100%
  • 21
    Density: how many notes there are. Density leaves gaps in the line: low for a sparse intro, high for a busy drop.0 to 100%
    Tip Density leaves gaps in the line. Lower it for a sparse intro where the bass only marks the downbeats.
  • 22
    Swing: the swing of the timing.0 to 100%
  • 23
    Humanize: adds a human feel to the timing and playing.0 to 100%
  • 24
    Length: note length: below 100% shortens notes toward staccato, above it lengthens them toward legato. Notes still never collide.10% to 200%
  • 25
    Groove: leans the whole timing ahead of the beat (Rush) or behind it (Drag).Rush 100% to Drag 100%, with Straight in the middle
    Tip Groove leans the whole timing ahead of the beat (Rush) or behind it (Drag). A slight drag gives the bass a laid-back feel.

Acid and Roll

Acid and Roll section of MisomidixBass
  • 26
    Acid: switches on the acid bass mode, this edition's headline mode. Slide and Accent shape it. It is off by default.
    Tip Acid mode adds slide and accent to the bassline. Switch it on for a 303-style acid line and shape it with the Slide and Accent knobs.
  • 27
    Roll: rolling sub-bass: a staccato 16th line that sits under the kick and bounces up an octave on the offbeats. It overrides Acid. It is off by default.
    Tip Roll generates a staccato 16th sub-bass that bounces up an octave on the offbeats, sitting under the kick.
  • 28
    Slide: the amount of slide in the acid line.0 to 100%, default 30%
    Tip Slide controls how much portamento the acid line gets. Higher values give longer glides between notes.
  • 29
    Accent: the amount of accent in the acid line.0 to 100%, default 40%
    Tip Accent drives the velocity spikes in the acid line. Higher values make the accented notes stand out more.

Generate and export

Generate and export section of MisomidixBass
  • 30
    Generate: generates a new pattern.
  • 31
    Re-roll: re-rolls the bass.
  • 32
    Export MIDI: saves the bass as a MIDI file.
  • 33
    Drag to DAW: drag from this handle onto your timeline to take the pattern on screen into your session.

Piano roll

Piano roll section of MisomidixBass
  • 34
    Fold: shows only the pitches the part actually uses, so the piano roll stays compact.
  • 35
    Piano roll: shows the notes of the bassline. You can also drag it onto your timeline.

Meters and displays

  • 35
    Piano roll: shows the notes, with the bar numbers along the top and the chord names above each bar. Only the bass is output; the drums and chords it follows are generated out of sight.
  • MIDI files on the window: drop a .mid file on the window to import it and re-groove your own material.

Key specs*

OutputMIDI only; makes no sound on its own (a built-in preview synth is for auditioning)
PartOne: the bass
Genres14
MacrosComplexity, Density, Swing, Humanize, Length, Groove
Kick lockBass onsets lock to the kick
Bass modes5: follow-kick, root, root-fifth, offbeat, root-plus-octave
TempoFollows the host; 60 to 200 BPM when standalone
Recall4 snapshot slots (saved with the project), presets, checksummed pattern codes; seed-deterministic
MIDI outDrag to the timeline, or export as a MIDI file
MIDI inDrop a .mid file to re-groove your own material

* Key specs from the plugin page. Some specs may not be listed.

How does the sound flow through MisomidixBass?

MisomidixBass writes MIDI, not audio. Out of sight it generates the drums and the harmony, then writes the bass against both and outputs the bass alone.

Your settings genre, key, scale, progression Drums generated out of sight Harmonic grid generated out of sight Bass onsets locked to the kick Piano roll the bass alone Diagram by Remi Blaze · remiblaze.com Your settings genre, key, scale, progression Drums generated out of sight Harmonic grid generated out of sight Bass onsets locked to the kick Piano roll the bass alone Diagram by Remi Blaze · remiblaze.com

How do I write a bassline with MisomidixBass?

  1. Load it. Put MisomidixBass on a MIDI track ahead of an instrument, or open the Standalone app.
  2. Pick the genre. Choose a genre. It decides how the bass moves.
  3. Set the harmony. Pick a key, a scale, a loop length and a progression. They set the roots the line moves between.
  4. Generate. Press Generate, or Re-roll for a new version of the line.
  5. Shape it. Use Density to leave more or fewer gaps, and Swing, Humanize and Groove to place the line against the beat. Keep each version in a snapshot slot with +.
  6. Take it out. Drag the pattern onto your timeline with Drag to DAW, or press Export MIDI for a MIDI file. Copy the pattern code to get the result back later.

How do I write an acid bassline with MisomidixBass?

  1. Pick a genre. Choose Tech House, Techno or Minimal for a pattern that suits the acid style.
  2. Switch Acid on. Turn on Acid to activate the acid bass mode. The line changes to a 303-style pattern.
  3. Set Slide and Accent. Raise Slide for longer glides between notes. Raise Accent so the accented notes punch through.
  4. Shape the rhythm. Adjust Density and Swing. Lower Density strips the line back; Swing pushes it into a shuffle.
  5. Drag it out. Drag the piano roll onto your timeline and route it to a synth with a resonant filter for the classic acid sound.

What about the full Misomidix?

The full Misomidix, with its six part buttons, nine knobs and piano roll.

MisomidixBass writes the bass alone. Misomidix writes all six parts together on the same engine: drums, chords, bass, melody, stabs and arp, in an order where each part follows the ones before it. Lock the parts you like and re-roll the rest. Misomidix is also in the MIDI Bundle with Misomidix Raw, Ghostix and Vortix.

Keyboard and mouse shortcuts

These work in every MisomidixBass format (AU, VST3, CLAP, AAX, Standalone).

Reset a control to its defaultDouble-click the knob or slider
Scroll to change a valueHover over a knob and scroll the mouse wheel
Type an exact valueClick the value below a knob and type a number

Frequently Asked Questions

MisomidixBass generates the drums and the harmonic grid out of sight, so it can lock the bass to the kick and follow the harmony. It outputs the bass alone.

Key, scale and progression set the roots the line moves between. The genre decides how it moves between them.

Keep it in one of the four snapshot slots, save the settings as a preset, or copy its pattern code. Pasting the code back in with Apply gives you that exact pattern.

In some hosts the CLAP version shows up under Audio FX as well as Instruments. Either one works.

MisomidixBass only writes MIDI, so route it to an instrument, or switch on Preview to audition it. Then check that Play and MIDI Out are on; both are on by default.

On the MisomidixBass page: its features, system requirements and how to get it.

How do I buy and install MisomidixBass?

  1. Buy it. MisomidixBass is a one-time purchase. Buy it from the MisomidixBass page, and the store emails you the download link.
  2. Run the installer. On macOS, double-click the .pkg file and choose AU, VST3, CLAP, AAX or Standalone. On Windows, run the .exe installer and choose VST3, CLAP or Standalone.
  3. Open your DAW. Restart your DAW and rescan plugins if needed, then find MisomidixBass under Remi Blaze in your plugin list.

More about MisomidixBass, including its features and system requirements, is on the MisomidixBass page.

Where are the plugin files?

If you need to find MisomidixBass on disk, for example to troubleshoot or to uninstall it manually, these are the standard locations.

macOS AU~/Library/Audio/Plug-Ins/Components/
macOS VST3~/Library/Audio/Plug-Ins/VST3/
macOS CLAP~/Library/Audio/Plug-Ins/CLAP/
macOS AAX/Library/Application Support/Avid/Audio/Plug-Ins/
Windows VST3C:\Program Files\Common Files\VST3\
Windows CLAPC:\Program Files\Common Files\CLAP\

To uninstall, quit your DAW and delete the MisomidixBass file from the relevant folder. Your DAW will stop listing it on its next rescan.

Need help with MisomidixBass?

If something isn't covered here, or MisomidixBass doesn't behave as described, contact support or email support@remiblaze.com. To get an answer faster, include:

  • your operating system and version (for example macOS 15.6 or Windows 11)
  • your DAW and its version
  • the format you're using (AU, VST3, CLAP, AAX or Standalone)
  • the MisomidixBass version, shown in the About panel (click the Fire Head)
  • what you did, what you expected, and what happened instead

This manual is for MisomidixBass 1.0.0. Controls and settings can change between versions, so if something here doesn't match what you see, check which version you have: click the Fire Head to open MisomidixBass's About panel. Spotted a mistake or have a question? Let us know.

See MisomidixBass Get Support