How to program hi-hat patterns that groove, from 8ths to trap rolls

By Tongkit Leong · October 6, 2026 · 6 min read

Hi-hats set the groove of a beat: play them steady, make some hits louder than others, and let a few land on the offbeat as open hats. You can program all of it in the piano roll of the free Tracks studio, with no download and no account.

Why hi-hats matter

The kick and snare tell the listener where the beat is. The hi-hats tell them how it feels. The same kick and snare sound stiff with robotic hats and loose with a well-shaped hat pattern. Hats are also the cheapest way to add movement to a beat, because they sit high in the frequency range and rarely clash with the bass.

Step 1: Pick the grid

Open a drum track, create a clip, and open it in the piano roll. Your grid setting decides how fast the hats can go:

• Eighth notes: eight hits per bar. Calm and steady, common in pop, rock, and house.
• Sixteenth notes: sixteen hits per bar. Busier and more driving, common in hip-hop, funk, and R&B.
• Thirty-second notes: thirty-two hits per bar. Used for the quick bursts in trap rolls.

Not sure about tempo? The BPM cheat sheet lists typical ranges for each style.

Step 2: Lay down the steady pulse

Start with a closed hi-hat on every step of your chosen grid. Loop it with a kick on beat 1 and a snare on beats 2 and 4. This is the plain version of the groove, and it is worth hearing before you change anything. If you have not built a basic beat yet, program a beat with the drum machine first.

Step 3: Accent with velocity

A flat row of identical hits sounds like a metronome. Velocity, the strength of each note, is what gives a hat pattern shape. In the piano roll you adjust it with the bars under the notes; velocity editing covers the details.

Two shapes work almost everywhere:

• Strong on the beat, soft between: the hat on each beat is louder, the ones in between are quieter. This gives a steady, driving feel.
• Strong on the offbeat: the hat on the "and" of each beat is louder. This gives a lifted, bouncy feel typical of house and disco.

Keep the quietest hits audible. If a hit is so soft you can barely hear it, it is not adding groove, only clutter.

Step 4: Add open hats

An open hi-hat rings out instead of ticking. The classic spot for it is the offbeat, the "and" of beat 2 or beat 4, or the "and" of beat 4 right before the next bar. Place an open hat there and delete the closed hat that was on the same step, so the two do not stack. Use open hats sparingly: one or two per bar is plenty. The 808 and 909 kits both have them, and 808 vs 909 explains how the hats differ between kits.

Step 5: Add rolls

A hat roll is a quick burst of hits, usually in the last beat of a bar or phrase. Switch to a finer grid, place a run of hits across the last beat or half-beat, and raise or lower the velocity across the run so it swells or fades. Trap leans on this heavily, and making trap beats in your browser shows it in context. Rolls double as small fills; for the bigger version, see how to program drum fills.

Do not roll every bar. A roll only stands out when the bars around it are steady.

Step 6: Add swing or humanize

Perfectly even hats can feel stiff. Swing pushes the offbeat hits slightly late, which gives the pattern a shuffle, and humanize varies timing and velocity a little. Both are explained in quantize and swing and humanize MIDI. Start with small amounts. If the hats start to feel sloppy against the kick and snare, back off.

Common mistakes

• Every hit at the same velocity. This is the most common reason hats sound robotic.
• Hats too loud. They are bright and easy to overdo. Turn them down until the kick and snare lead.
• Open hat stacked on a closed hat. Remove the closed hit on the same step.
• Rolls everywhere. Save them for the end of a bar or phrase.
• Too much swing. A little goes a long way.

Frequently asked questions

What is a good basic hi-hat pattern?

A closed hi-hat on every eighth note, with the on-beat hits slightly louder than the offbeats. Move to sixteenth notes when you want more drive.

How do I make hi-hats sound less robotic?

Vary the velocity from hit to hit, add a little swing or humanize, and take out a hit here and there so the pattern is not a solid wall of identical notes.

What is the difference between open and closed hi-hats?

A closed hi-hat is a short tick. An open hi-hat rings out for longer. Producers use closed hats for the steady pulse and open hats for accents on the offbeat.

Can I program hi-hats in Tracks for free?

Yes. The drum machine, piano roll, velocity editing, and swing are all built into the studio, which runs in your browser. Your project stays on your device.