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A real Ableton Glue Compressor you can actually drag. Pick the part you are working on — a drum bus, your bass, the master — and see what each control does to glue it together, plus what too much or too little does to that sound. The bus glue compressor, the way Mix Lock teaches every device.
More free device guides: Compressor → · Saturator → · Dynamic EQ →
Everything the tool above teaches, written out. Every control on the Glue Compressor, what you hear as you move it, and a starting point for each bus in a peak-time trance mix.
What each control on Ableton's Glue Compressor actually does, and what you hear as you move it in either direction.
How loud the bus has to get before the glue acts. Lower it to glue more; the needle shows how much gain reduction you are getting.
Manual makeup gain — give back the level the glue takes so you A/B at matched loudness and judge the glue, not a volume jump.
Caps how much gain reduction the glue can apply. At 0 dB it cannot compress at all; pull it down toward -70 dB to let it work fully (-60 to -70 dB emulates the original hardware, and is the default). It never clamps past wherever you set it.
Blends glued with dry. 100% is full glue; pull it back for parallel glue — squash the wet hard and keep the dry punch underneath.
How hard it glues, in three fixed steps. 2 is the gentle bus setting, 4 firmer, 10 near-limiting.
How fast it grabs the transients. Slow lets the hits punch through (the classic glue move); fast clamps them and dulls the bus.
How fast it lets go. Auto follows the music and is the safe no-pump default; the manual times let you tune the pump to the groove.
The frequency the sidechain filter pivots around. Set it where you want the glue to listen hardest — handy for stopping the kick or sub driving the whole bus down.
Blends the external trigger with the bus signal as the detector. 100% reacts purely to the sidechained track; lower mixes its own peaks back in.
Boosts or cuts the external sidechain input so it crosses the threshold harder — a fast way to set how deep the duck goes once a sidechain is routed.
How sharp or narrow the sidechain filter is — wide for a broad tilt, narrow to make the glue react to just one band.
On (Soft) clips the output to a fixed −0.5 dB ceiling — catches the loudest peaks and adds analog-style density. A handy safety cap, but it is wave-shaping, not transparent — it colours the loudest peaks, so watch your level into the next device.
Triggers the glue from ANOTHER track instead of the bus itself. Mix Lock pumps with volume, but explore freely: key the bus off the kick for rhythmic movement, or off a dry channel.
Picks which track does the triggering once External is on. Choose the kick to pump the bus to it, or a dry channel to ride a wet return. Left at No Input by default.
Makes the glue listen to only part of the spectrum when deciding to act. Brilliant on a bus: stop the sub or low end from driving the whole group down, so only the mids trigger it.
Chooses the filter shape (low-cut, high-cut, bell…) for what the sidechain hears. Pair it with Freq and Res to aim the glue at exactly the band you care about.
Blends the external trigger with the bus signal as the detector. Only relevant with an external sidechain.
Boosts/cuts the external sidechain input so it crosses the threshold harder. Only matters with a sidechain routed.
How sharp or narrow the sidechain filter is.
Starting points for peak-time trance at 140 BPM — not presets to copy blind, but a sane place to begin before you use your ears.
Keep the ratio low and the gain reduction shallow so the Glue bonds the claps, hats, snares and perc into one kit rather than squashing them, and use a slow attack so the clap snap and hat tick punch through before the compressor grabs. There is no kick to fight here — in trance it routes direct, never through this bus — so this is pure cohesion: the kit as one, transients intact.
Yes — the classic glue. Pull the claps, hats, snares and perc into one block.
Keep this glue light, the sub and mid bass want to feel like one weight, not get squashed. If the gain-reduction needle is jumping only on the sub hits, switch on the SC Filter and lift its high-pass up off the very bottom so the detector stops riding the sub and the glue catches the mid bass instead.
Light glue if sub + mid bass share a group.
Turn on the Sidechain EQ inside the Glue and high-pass the detector, lifting it up off the very low end until the comp stops chasing the pad and low-end energy. Now it glues on the body of the leads and plucks instead, so you get just a touch of movement on the needle and the top stays open and breathing.
Light glue — pulls leads, plucks and pads into one layer.
Glue on a tops bus is a gentle job, so keep the ratio low and the attack slow enough that the hat snap and ride air get through before the comp grabs. If the rides own low-mid body is pumping the detector more than you want, switch on the Glue sidechain filter and sweep its high-pass up until the meter only moves on the bright perc.
Often — glue hats, rides, shakers and perc into one groove.
The useful move here is restraint: keep it to a hair of glue with Auto release and the low ratio, match Makeup to bypass, then watch the needle let go fully in the gaps between phrases. If it hangs after a loud line it hauls the breaths, room and reverb tails up with it, and the blend stops sounding natural.
Yes — glue lead, harmonies and chops into one consistent vocal.
On a wet space bus the useful move is restraint: keep the glue light so it barely moves, and if the tails still pump on every beat, lengthen the Release so the compressor does not recover between kicks and start chasing the groove. That holds a steady, even sense of space instead of breathing in time with the beat.
Sometimes — glue the wet returns so the space sits as one.
Open the Glue sidechain panel and switch on its EQ high-pass so the kick and sub stop pulling the whole mix down on every beat; you are filtering the detector only, not routing anything in, so the low end keeps its punch while the glue works the mids and highs. Roll the filter up just until the gain-reduction needle stops pumping in time with the kick, then leave it light.
A real split: some glue gently from the start; many keep it clean for mastering.
Switch on the SC Filter in the Sidechain panel and set its Type to a low-cut, then bring the Freq up off the floor so the glue stops reacting to the loop's own kick and sub and starts riding the snares and hats instead. Keep the gluing gentle and let the slow attack protect the bounce — the filter is there to stop the low end pulling the gain down on every beat, not to do more squashing.
Often — glue a full drum loop or sampled break so it sits as one.
On the parallel Glue, switch its sidechain EQ to the high-pass shape and lift the cutoff above the sub, so the low end does not duck the whole crushed copy between hits. Then ride the return up only until the bus feels heavier, and back off the moment the off-beat starts to fill in, the dry bus is already carrying your punch and pump.
Crush a copy and blend it under the dry for weight and density (New York style).
Gluing a drum or bass bus? The written kick and sub mixing guide covers how the kick and sub share the bottom of a trance drop.
Another free tool
Mix Lock Lite keeps your whole slate in one place: stages, checklists, notes and bounce reviews you can pin to the waveform. Works offline, no sign-up.
This is one device
Every channel and the devices on it, taught the same plain way — live in your own Ableton session, with a mix scorecard and a fix queue. Try it free for 72 hours, no card — the 39-track peak-time Ableton template ships with the full app.