How to Make a Trap Beat
Trap is built on three pillars: a hard-hitting half-time kick/snare pattern, rolling hi-hats, and a deep 808 bassline tuned to the key of your melody. This guide walks through every step, from choosing your BPM and key to mixing your 808 and exporting a professional-sounding beat.
Set Your BPM and Key
Trap BPM Ranges
Most Common Trap Keys
Pro tip: If you are flipping a sample, detect the key first with BeatKey before building anything. Tuning your 808 to a wrong key kills the whole beat.
Detect sample key free at beatkey.app →Build the Trap Drum Pattern
The trap drum pattern is defined by its half-time feel. The kick and snare move slower than the BPM suggests, creating a heavy groove even at 140 BPM.
Classic Trap Pattern (1 bar, 16 steps at 140 BPM)
| Element | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kick | ||||||||||||||||
| Snare | ||||||||||||||||
| Open HH | ||||||||||||||||
| Closed HH | ||||||||||||||||
| HH Roll |
Kick Drum
- +Beat 1 (downbeat)
- +Beat 3+ (syncopation)
- +Avoid beat 3 for half-time feel
- +Velocity variation: 100-127
Snare
- +Beats 5 and 13 only (half-time)
- +Add ghost notes at 30-50% velocity
- +808 clap layered with snare
- +Long reverb tail (2-3 seconds)
Hi-Hats
- +16th note base pattern
- +Velocity variation 40-127
- +Roll: triplets accelerating
- +Open HH on off-beats for groove
Tune and Program Your 808
The 808 is the heartbeat of a trap beat. If the 808 is out of tune with your melody or sample, the whole track sounds off. Always tune to the key.
Detect Key
Upload your sample or melody to BeatKey. Get key + Camelot code.
beatkey.appFind Root Hz
Look up the Hz for the root note of your key in the Note Frequency Calculator.
notes.beatkey.appFind Sample Pitch
Most 808 samples are tuned to C1. Count semitones from C to your target note.
Semitone chartPitch in DAW
Set the 808 sampler pitch +/- semitones. Use Fine Tune for cents correction.
FL/Ableton/Logic808 Tuning Quick Reference (C1 base sample)
| Key | Root Note | Semitones from C | Hz (root) | DAW Pitch Setting |
|---|---|---|---|---|
| A minor | A1 | +9 | 55.0 Hz | +9 semitones |
| D minor | D1 | +2 | 36.7 Hz | +2 semitones |
| G minor | G1 | +7 | 49.0 Hz | +7 semitones |
| C minor | C1 | 0 | 32.7 Hz | No change (default) |
| E minor | E1 | +4 | 41.2 Hz | +4 semitones |
| F minor | F1 | +5 | 43.7 Hz | +5 semitones |
808 Slides (Portamento)
- +Use portamento/glide for slides between notes
- +Slide time: 50-200ms depending on feel
- +UK Drill uses longer slides (100-200ms)
- +Overlap notes in Piano Roll to trigger slide
808 Mixing Tips
- +Sidechain 808 to kick drum (ratio 4:1, fast attack)
- +High-pass all other elements below 80 Hz
- +Saturate 808 for presence on small speakers
- +Check mono at all times (808 disappears if out of phase)
Write the Melody and Chords
Common Trap Chord Progressions
Trap Melody Tips
Use the Minor Pentatonic
A minor pentatonic (A-C-D-E-G) is the backbone of most trap melodies. It is hard to play a wrong note.
Chromatic Passing Tones
Slide into notes from a semitone below for dark trap flavor. Especially effective between b3 and 4.
Short, Repeated Motifs
Trap melodies are often 2-4 bar loops repeated throughout. Keep your hook simple and hypnotic.
Sample Chops
Flip a soul or R&B sample by detecting its key with BeatKey, then tuning your 808 and drums to match.
Reverse engineer samples: If you have a sample you like, upload it to Chord Finder to see exactly what chords are in it. Then build your own progression around those chords.
Free Chord Finder at chords.beatkey.app →Arrange Your Trap Beat
Standard Trap Song Structure
Ear Candy
- +Risers before drops
- +Reverse cymbal before chorus
- +Vocal chops/FX between sections
- +FX automation in transitions
Energy Curve
- +Verse = building energy
- +Pre-chorus = max tension
- +Chorus = release/peak
- +Bridge = strip back then rebuild
Layering
- +Add layers progressively
- +Remove a layer for verse 2 contrast
- +Drop everything for 2 bars before hook
- +Counter-melody in second half
Mix Your Trap Beat
Trap Mixing Priorities
BPM-Synced Delay for Trap
Delay synced to BPM makes hi-hat rolls and vocal chops sit perfectly in the groove. Use the free Delay Calculator.
| BPM | 1/8 note | 1/16 note | Dotted 1/8 |
|---|---|---|---|
| 130 | 231ms | 115ms | 346ms |
| 135 | 222ms | 111ms | 333ms |
| 140 | 214ms | 107ms | 321ms |
| 145 | 207ms | 103ms | 310ms |
Free Tools for Trap Producers
Detect BPM and key of any sample. Essential before tuning your 808.
Find the chord progression in any sample. Build your melody around it.
Look up Hz values for 808 tuning. All MIDI notes, exact Hz, 808 guide.
Get BPM-synced delay ms for hi-hat rolls and vocal effects.
Get all notes in your key. Build melodies that stay in key.
Find compatible keys for mixing two beats or adding a second sample.
Common Trap Beat Mistakes
Mistake: Out-of-tune 808
Always detect sample key with BeatKey first. Tune 808 to the root note. Use notes.beatkey.app for exact Hz values.
Mistake: No sidechain compression
Sidechain your 808 to the kick. Without it the bass and kick clash and the mix sounds muddy at high volumes.
Mistake: Too many elements
Trap is minimal. Kick, snare, hi-hats, 808, one melody, and maybe one pad. Remove anything that does not serve the groove.
Mistake: Hi-hats too rigid
Program velocity changes on every hi-hat hit. Rolls should accelerate (low to high velocity). Ghost notes add life.
Mistake: Mixing too loud
Set your master volume to -6 dBFS headroom. Mix at low volume. Check your mix in mono. Add a limiter only at the end.
Mistake: No reference track
Pull up a pro trap beat in your DAW while mixing. A/B your mix against it. Match the low-end energy and stereo width.
Frequently Asked Questions
What BPM is trap music?
Trap is typically produced at 130-145 BPM. The kick and snare pattern creates a half-time feel that makes it sound around 65-72 BPM to the listener. Most classic trap beats are at 140 BPM. Melodic trap and emo rap can go lower, around 120-130 BPM.
How do I tune an 808 to my trap beat?
First detect the key of your sample or melody using BeatKey. Look up the Hz for the root note in the Note Frequency Calculator at notes.beatkey.app. If your 808 sample is tuned to C, calculate how many semitones C is from your target note and pitch the sampler accordingly. For example, A minor root is A1 (55 Hz), which is 9 semitones above C1.
What key should a trap beat be in?
Most trap beats use minor keys. A minor, D minor, and G minor are the most common. Dark and aggressive trap uses Phrygian mode for an extra sinister sound. Melodic trap often uses A minor or F minor with chromatic passing tones. Minor keys give trap its characteristic heavy, emotional feel.
How do I make trap hi-hat rolls?
Trap hi-hat rolls are groups of 16th note or 32nd note subdivisions placed at the end of a bar or between beats. Program velocity from low to high within the roll (e.g. 40, 60, 80, 100, 127) to create an accelerating feel. You can also use triplet patterns (3 notes in the space of 2) for a more complex rhythmic feel. Most producers place rolls on beats 3, 4, or between snare hits.
Related Production Guides
No account required. No file size limit. BPM + Key + Camelot code in seconds.