Max for Live · MIDI Effect
The bassline writes itself. Underground.
Bassurito generates underground-house sub and acid basslines and plays them locked to Live's transport — through whatever instrument sits after it on the track. Let it write the whole line, or mine it for ideas when you're stuck.
$49. One-time. Free lifetime updates. All sales final — digital product, no refunds (refund policy). Checkout by Polar.
- Type
- MIDI Effect
- Needs
- Live 12 · Max 9
- Files
- One .amxd
- Sync
- Song position
Free browser preview
Press play. Then press it again.
A limited taste of the device's generator. Hit Space to re-roll, click a note to hear it. Padlocked bits are in the full version.
Like it? The full version has locks, Acid, 8 bars, history & MIDI export.
Heads up. This browser preview is a sketch of the controls, not the exact device UI. The real Bassurito runs inside Ableton Live.
This is a limited taste, not the product: Sub family only, three scales, three feels, 1–2 bars, a simple built-in synth. The patterns come from the same generator as the device (same seeds, same notes for these options). The real Bassurito adds Acid, all 7 scales and 6 feels, 4- and 8-bar phrases with fills, locks, octave, history, Write Clip and MIDI export — and plays your own instrument inside Live.
Why it grooves
Random, but not random. Studied.
Infinite options. Zero amateur ones.
Bassurito is trained on real basslines.
It doesn't flip a coin per step. It plays real bassline rhythm skeletons from the library it was trained on, with call-and-response bars. Pitch is a data-weighted walk using scale-degree, interval and after-leap statistics from that same library. Fills and variation habits on bars 4, 6 and 8 come from its 8-bar material.
Tuned by ear and by numbers. Producer-grade groove, with intent.
- 7scales
- 2families: Sub & Acid
- 6feels + Random
- 1·2·4·8bar phrases
- 12roots
- ±3octaves
- Billionsof seed combinations. Same two numbers, same line, every time.
Two ways to use it.
Re-roll until it hits, lock what works, Write Clip. Done. A finished bassline, straight into your arrangement.
Stuck? Re-roll until something sparks, then play it your own way. An idea machine that already knows house.
Built for the moment the groove clicks.
Re-roll fast, keep what works, and get the line out of the device when you're done. Take the whole line, or just the idea.
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01
Locked to song time
Every step is read from Live's song position, so tempo changes, loop jumps and starting mid-arrangement stay aligned. Stop Live and it goes silent — no hanging notes.
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02
Randomize, with locks
Lock the key, the rhythm skeleton, the family, the feel or the phrase length — then re-roll everything else. Changes land on the next 16th or the next bar line.
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03
Two families, six feels
Sub for low house weight. Acid for mid-register 16ths. Pick Sparse, Balanced, Busy, Rolling, Syncopated or Stabby — or leave it on Random.
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04
Seeds that come back
Every pattern is two numbers. They save with your Set, so reopening plays the exact same line — and History walks back through your last 64.
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05
Follows Live's key
Switch on Follow and the line tracks your Set's root and scale in Live 12 — even when you change them mid-session. Randomize keeps the key while it's on.
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06
Out to a clip or a file
Write Clip drops the phrase into the next empty slot. Export MIDI saves a loop-exact .mid at your tempo, ready for any DAW.
Three steps to a low end.
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Drop it on a MIDI track
Place it in front of any instrument — Operator, Analog, Drift, or your favourite bass preset.
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Press Play in Live
The bassline plays in sync with your arrangement. Stop Live and it goes quiet.
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Randomize until it grooves
Lock what you like, re-roll the rest, then Write Clip or Export MIDI to keep it.
Buy once, keep it. One-time purchase, free lifetime updates — when a new version lands, swap in the new .amxd.
Under the hood
Timing handled by Max, not by luck.
The pattern is generated in JavaScript, but JavaScript never sends a note. It writes an event table that a high-priority native chain plays at 10-tick resolution, straight from Live's song time. Note-offs fire on stop, on loop jumps and on every pattern change.
One self-contained .amxd file. Nothing to keep next to it.
- metro
- transport
- slot
- coll
- flush
- noteout
- Resolution
- 10 ticks
- History
- 64 patterns
- Tests
- 102 passing
Specs.
- Format
- Max for Live MIDI Effect (.amxd)
- Requires
- Live 12 with its bundled Max 9
- Phrase length
- 1, 2, 4 or 8 bars
- Octave shift
- −3 to +3
- Apply changes at
- Next 1/16 step or next bar
- MIDI export
- Format 0 · 480 PPQ · Live's tempo
- Automation
- All controls are Live parameters
- Recall
- Saved with the Set, exactly
- Price
- $49, one-time
- Updates
- Free for life
- Refunds
- All sales final — refund policy
See it in Live.
The real device on a real MIDI track. Sound on.
Give your next track a bassline.
One .amxd file. Drag it in, press Play.
$49. One-time. Free lifetime updates.
All sales final. Digital product, no refunds. Refund policy.
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