Beat-Making · Module 8 of 9
Mixing & Mastering for Beats
Mixing a beat is different from mixing a full band. Sub-bass dominates the spectrum. Sidechain compression isn't a tool — it's a signature sound. Loudness targets vary wildly by use (streaming vs club vs beat-tape). This module is the producer-specific subset of mixing and mastering.
The Sound Engineering course taught general mixing — works on a band, a vocal song, a podcast, anything. Beat-making mixing is a subspecialty: heavier on the low end, more dependent on sidechain, mastered to wildly different LUFS targets depending on whether the beat is for streaming, a club system, or a beat-tape sale platform. The principles overlap with the general course; the specifics diverge in ways that matter.
This module covers four producer-specific moves: sidechain compression as the structural glue of modern beats, sub-bass management (cleaning the bottom octave so it translates), bus-level glue (the cohesion move pros use to make beats sound "expensive"), and loudness targets per platform. If you've finished the Sound Engineering course, this is the producer-overlay version. If not, this module gives you enough to get a beat to release-ready.
Four ideas first about producer-specific mix moves, then a sidechain visualization, then a try-this on the sidechain workflow.
First, the four moves
The producer-specific subset of mixing and mastering.
Idea 1
Sidechain compression — the producer's signature
Sidechain compression makes one element "duck" out of the way whenever another element triggers. The kick triggers the bass to dip 3-6 dB on each kick hit — letting the kick punch through cleanly, then the bass swells back. The defining sound of modern dance and pop production.
Think of sidechain like two people sharing a microphone — one talks, then steps back and the other takes over, no overlap.
Set up: drop a compressor on the bass channel. Set the compressor's sidechain input to receive from the kick track. Ratio: 4:1. Threshold: -20 dB (so kick triggers it). Attack: fast (1-3 ms). Release: medium (80-200 ms). The bass now drops 3-6 dB whenever the kick fires, then recovers smoothly. The pumping audible effect is the genre signature in house, EDM, deep house. Subtle sidechain (1-3 dB ducking) is the cleanup move in hip-hop, pop, R&B — invisible but the kick punches through. Beyond kick→bass: sidechain pads/leads to the kick (cleans up clutter), sidechain reverb sends to vocals (vocal stays present, reverb breathes around it). Sidechain is one of the most-used tools in modern beat-making — every pro track has at least one sidechain relationship.
Idea 2
Sub-bass management
The bottom octave (20-100 Hz) needs to be controlled — too much and you blow speakers / max your loudness; too little and the beat sounds thin. Three rules: HPF non-bass tracks, mono-below-120Hz, control sub levels with a peak limiter.
Think of the sub-bass octave like a small room — only a few people fit comfortably. Putting more energy in cancels out the existing residents.
Rule 1: high-pass everything that isn't bass. Vocals: HPF at 100-150 Hz. Pads: HPF at 200 Hz. Hats: HPF at 300 Hz. Snare: HPF at 80 Hz. The low octave belongs only to the kick + bass + 808. Rule 2: sum content below 120 Hz to mono. Stereo bass cancels on mono playback. Use Ableton's Utility, Logic's Stereo Spread, or any free M/S plugin. Rule 3: put a peak limiter on the bass channel itself, ceiling -1 dB. Stops the bass from clipping when notes overlap or sub spikes appear. Beyond rules: reference your kick + bass solo in mono. They should still be musical and weighty without stereo width or other elements masking issues. The Sound Engineering course's Module BM-4 covered this; here it's the mix-stage application: clean it, contain it, mono it.
Idea 3
Bus-level glue
Group similar elements onto subgroups (Drum bus, Melodic bus, Master bus). Drop a bus compressor on each — 2:1 ratio, 1-3 dB GR. The result is "glue" — elements feel like they belong together even though they were recorded separately.
Think of bus glue like a frame around a collage of photos — the frame makes disparate pieces feel like one composition.
Drum bus: route kick, snare, hats, percussion to one bus. Drop a Glue Compressor (Ableton) or Compressor (any DAW) — ratio 2:1, threshold for 1-3 dB GR, fast attack, slow release. The drums now feel cohesive. Melodic bus: route synth, pad, lead, melody samples to a "Music" bus. Same compressor settings but lighter (1-2 dB GR). Master bus: drop a final glue compressor at the end of the master chain — 2:1, attack 30 ms, release auto, 1-2 dB GR maximum. Critical: bus compression is a glue tool, not a loudness tool. Do not push it past 3 dB GR. Modern producers also drop a tape saturator or saturator on each bus — adds harmonic warmth and "expensive" character. 5-15% drive max. Cumulative effect across drum bus + melodic bus + master is significant; on each individually it's subtle.
Idea 4
Loudness targets — depend on where the beat goes
Streaming: -14 LUFS (Spotify, YouTube, Tidal). Apple: -16 LUFS. Club: -7 to -9 LUFS (loud + dynamic). Beat-tape sale (BeatStars, Airbit): -8 LUFS (bidders A/B beats; loud wins). Pick the target before mastering.
Think of LUFS targets like volume settings for different rooms — concert hall vs club vs phone speaker need different levels.
For streaming releases: -14 LUFS, true peak ≤ -1 dBTP. Spotify and YouTube normalize to this; mastering hotter than -10 LUFS just gets turned down (Module 11 of the Sound Engineering course covered this in detail). For club / DJ play: -8 to -9 LUFS, peak ≤ -0.3 dBTP. Loud is functional; DJs need consistent levels mixing tracks. For BeatStars / Airbit / beat-tape platforms: -7 to -8 LUFS. These are sales platforms — buyers A/B short previews, the louder beat usually wins the click. (This is gross but true.) For SoundCloud / Bandcamp: match the platform — SoundCloud aligns with Spotify; Bandcamp accepts louder masters since there's no normalization. The Sound Engineering Module 11 covered the technical side; the producer-specific note: a single "master version" usually doesn't fit all platforms. Pros make at least 2 masters: a streaming-optimized version (-14 LUFS) and a louder beat-tape version (-8 LUFS) for sales platforms.
The visual below shows what sidechain compression actually does — bass volume drops on each kick hit, then recovers. The result is the "pumping" sound of house and EDM, or the invisible cleanup of pop and hip-hop.
Subtle (2-3 dB) is invisible cleanup. Heavy (6-10 dB) is the "pump" of house and EDM. Pick the genre's preference.
Try this · 30 minutes
Set up the sidechain workflow
Open the project from BM-7 (or any beat with a kick + bass). The exercise is to set up sidechain so the kick punches through the bass cleanly.
- Open your bass channel. Drop a compressor on it (Ableton Compressor, Logic Compressor, FL Fruity Compressor — any).
- Enable sidechain input. Most compressors have a "Sidechain" or "Side Input" toggle. Enable it. Set the sidechain source to your kick track.
- Set compressor settings: Ratio: 4:1. Threshold: -20 dB. Attack: 1-3 ms (fast). Release: 120-200 ms. Knee: 2 dB (soft).
- Listen. Play the beat. The bass should now noticeably dip whenever the kick fires. If you don't hear it, raise the threshold or lower the ratio's response. Check the GR meter on the compressor — should show 3-6 dB of reduction on each kick hit.
- Tweak release for genre. Long release (300-500ms) = pumping house feel. Short release (80-120ms) = invisible cleanup pop feel. Listen and decide.
- Bonus: sidechain pads/synths to kick too. Drop the same setup on your pad channel. Less GR (2-3 dB). Cleans up the mid-range during kick hits.
- Save as
BM-8_sidechain_v01. Notice how much cleaner the beat sounds — the kick has punch it didn't have before.
For a producer-friendly alternative: many DAWs have a "ducking volume LFO" tool — Ableton's LFO Tool or Volshaper, FL's Fruity Peak Controller, free plugins like Cableguys VolumeShaper. These give you direct control over the volume envelope without using a compressor — the same effect, more visual control.
A producer's mixing checklist
Run this checklist on every beat before mastering:
- Kick & bass relationship. Sidechain set up. Mono below 120 Hz. No sub clashes.
- Drum bus glue. All drums on a bus with subtle compression (1-3 dB GR) and saturation (5-15%).
- Melodic bus glue. Synths/pads/leads grouped, lightly compressed.
- HPF on non-bass. Vocals, hats, pads, leads all high-passed at appropriate frequencies.
- Reference at performance volume. 75-80 dB SPL. Don't mix loud — your ear lies (Module 7 of the Sound Engineering course).
- A/B with reference tracks. 2-3 commercial beats in your genre, loudness-matched. Listen for tonal balance differences.
- Mono-check. Sum to mono. Things shouldn't fall apart. If they do, you have phase issues.
- Phone speaker test. Listen on phone for 60 seconds. Does the beat still feel like the beat?
- Bounce at -6 dBFS peak for mastering (Module 10 of the Sound Engineering course).
Mastering in 5 moves
Producer-specific simplification of the full mastering chain (Module 10 of Sound Engineering for the deep version):
- Subtle EQ. ±1-2 dB shelves. Add air at 12 kHz, gentle low-end tightening at 80 Hz.
- Glue compressor. 2:1, 30 ms attack, 1-2 dB GR. Master bus.
- Saturation. Tape emulator at 10-15% drive. Adds warmth and harmonic glue.
- Stereo width (optional). Subtle widening of highs only — never widen below 120 Hz.
- True-peak limiter. Ceiling -1 dBTP. Push input gain until LUFS lands at your target (-14 for streaming, -8 for sales).
AI mastering tools — when to use them
Tools like iZotope Ozone Master Assistant, LANDR, and Aria can produce a credible first-pass master in 60 seconds. For producers, they're useful as:
- Sanity checks. Run AI mastering after your manual master. Compare. If yours is dramatically different, investigate.
- Quick demos. Need a louder version of a beat to play for someone in 5 minutes? AI mastering gets you there fast.
- Bulk beat-tape mastering. If you're uploading 50 beats to BeatStars, manual mastering each is unrealistic. AI is acceptable.
- Not a substitute for craft on releases. For your real releases, master manually using the 5 moves above (or hire a mastering engineer for full albums).
A producer's secret: reference at every stage
Pull 2-3 commercial reference tracks in your genre, loudness-matched, into your project. A/B against them as you mix and master. Your reference is your tuning fork. If your bass sounds thin compared to the reference, fix the bass. If your top end is harsh, tame it. The Sound Engineering course's Module 11 covered this; for beat-making the principle is doubly important because beats live or die on tonal balance against the genre.