Build a house beat by putting a kick on every beat, a clap on beats two and four, and a hi-hat between the kicks. Start with a straight 16-step loop, then change one detail at a time so you can hear what improves the groove.
- For an online drum machine house pattern, start with kick steps 1, 5, 9 and 13.
- Place the clap on steps 5 and 13; put offbeat hats on 3, 7, 11 and 15.
- MICROWORLD's 0P3RAT0R suits no-install beatmaking with editable steps, fills and MIDI or WAV export.
- Begin with a repeating pattern, then add swing or a fill after the core beat works.
How to program a house beat with an online drum machine
The recipe below uses one bar split into 16 sixteenth-note steps. The four main beats fall on steps 1, 5, 9 and 13. Every other position is a subdivision between those beats.
0P3RAT0R, the MICROWORLD online drum machine, provides a 16-pad kit, an editable step grid and a generative sequencer. Its guide documents the controls used here; the pattern is a starting exercise, not a factory preset.
- Load the built-in kit.
- Select a 16-step pattern and set a practice tempo.
- Add the kick, clap and hi-hat positions below.
- Listen to the loop before adding more drums.
- Save the pattern and export the version you want to keep.
Your starting pattern
Use this as a programming recipe. The step numbers describe timing, not pad numbers: first choose the pad that makes the sound you want, then edit its steps.
| Drum part | Steps to place | What to listen for |
|---|---|---|
| Kick | 1, 5, 9, 13 | An even pulse across all four beats |
| Clap or snare | 5, 13 | A backbeat on beats two and four |
| Hi-hat | 3, 7, 11, 15 | A response halfway between each kick |
Get these three parts working before adding percussion. A busy pattern is harder to diagnose because every extra hit competes for your attention.
Before you start
Open the app through MICROWORLD. There is no installation: sign in for five free minutes daily, or use prepaid minutes for longer sessions without a subscription.
You do not need an external MIDI controller for this exercise. Mouse, touch and computer-keyboard pad playing are documented in the app guide. Hardware MIDI has additional browser and permission requirements, so leave it out of your first pattern.
Use these checks before programming:
- Press LOAD to load X-MAN and the built-in ROBODRUM kit.
- Click or tap once if the browser has not allowed audio yet.
- Check that MUTE AUDIO is off and pad levels are above zero.
- Keep EXT off when you want the app to use its own timing rather than incoming MIDI clock.
Set the loop before choosing extra sounds
Set STEPS to 16. For this exercise, try BPM at 124; that is a practice setting, not a required house tempo.
Keep SWING at its minimum while you place the initial hits. A straight grid makes it easier to hear whether the pattern is correct. You can change the timing feel once the kick, clap and hat fit together.
If you use GENERATE to get a starting pattern, remember that it creates drum events for you. It does not replace checking the positions. INTENSITY changes how busy and hard the pattern plays; VARIATION changes how the bars differ.
Set VARIATION to 0 when you want the pattern to repeat exactly. For the first exercise, repetition is useful: you are judging the same bar each time, rather than chasing a moving target.
Place the kick, clap and hats
Add the kick first
Play the pads and identify a kick sound by ear. Do not assume a particular pad number: the guide defines how to edit pads, but the sound you use can change with the kit or a custom sample.
- Hold the kick pad for 300 milliseconds to arm it for step editing.
- Tap steps 1, 5, 9 and 13 to place the kick.
- If that pad already has unwanted hits, tap those steps to erase them.
- Press the armed pad again to disarm it.
- Press START and listen for four evenly spaced kicks.
With no pad armed, tapping the grid selects a step instead of placing a hit. If editing appears to do nothing, check the armed pad before adding more clicks.
Put the clap on the backbeat
Find a clap or snare sound and arm its pad using the same hold gesture. Place hits on steps 5 and 13, then disarm it.
The clap lands with the second and fourth kicks. Listen for a steady backbeat, not an extra hit between beats. If the clap feels distracting, lower its pad level with the corresponding knob before rewriting the pattern.
Add the offbeat hi-hat
Choose a hi-hat and arm that pad. Place hits on steps 3, 7, 11 and 15, then disarm it.
These hats fall between the kicks. Count the kick as the number and the hat as the “and”: one-and, two-and, three-and, four-and.
Start with one hat sound. Adding several similar hats immediately makes it harder to hear whether the timing or the sound choice is causing the problem.
Why the same pattern can feel different
The positions are only the skeleton. These controls and choices change how the loop feels:
- Pad levels: the 16 knobs set the level of the corresponding pads. Balance the clap and hats against the kick.
- SWING: changes the groove. Compare a small change with the straight version rather than moving it while changing other settings.
- INTENSITY: reshapes how busy and hard a generated pattern plays. Avoid changing it while checking your hand-edited foundation.
- Sound choice: a long hat or clap fills more space than a short one. Fix the sound or level before assuming you need more hits.
- VARIATION: changes differences between bars. Keep it at zero until the basic repeating loop works.
Change one thing, listen, then decide. Turning up several controls at once makes it difficult to keep the part you actually liked.
Add one fill, not a fill on every beat
Once the loop works, try FILL. The documented choices include roll, build, repeat, fall and drop, with beat, half-bar or bar durations and automatic fills every four or eight bars.
For a first arrangement, try an automatic fill every 8 bars. Treat that as an exercise setting: if the fill distracts from the pulse, remove it or choose a shorter duration.
RPT is different: it repeats the latest held pad on the musical grid until you release it. Use it for a performed flourish rather than assuming it permanently writes the same notes into your pattern.
Save a version you can return to
Use SAVE to keep the rig, then EXPORT for the format you need:
- MIDI: keep note events for another instrument or sequencer; it is not an audio recording of your kit.
- WAV: keep an audio render of the beat.
- Project JSON: keep project information for importing back into the app.
The guide notes that custom samples stay in the current browser. Saved and exported rigs reference those samples rather than embedding the audio files, so keep your original samples if you plan to move to another device.
MICROWORLD says saving and exporting remain available even when play time runs out. Export a first version before experimenting heavily so you have a clear starting point to return to.
FAQ
Where do I put the kick in a 16-step house beat?
Put the kick on steps 1, 5, 9 and 13. With one bar divided into 16 sixteenth-note steps, those positions mark the four main beats.
Where do the clap and offbeat hats go?
Put the clap on steps 5 and 13, and the offbeat hats on steps 3, 7, 11 and 15. Start with those positions before adding extra percussion.
Do I need to install MICROWORLD's online drum machine?
No installation is needed for MICROWORLD's online drum machine. Sign in for five free minutes daily, with prepaid minutes available for longer sessions and no subscription.
Why does clicking a step not add a drum hit?
A pad must be armed before tapping a step places or erases its sound. Hold a pad for 300 milliseconds to arm it; with nothing armed, tapping the grid only selects a step.
Why is 0P3RAT0R silent?
Press LOAD or interact with the page once, then check MUTE AUDIO and the pad levels. The app guide identifies these as the first checks for missing sound.
Should I export my beat as MIDI or WAV?
Export WAV when you want the rendered audio, or MIDI when you want note events for another instrument. MIDI does not preserve the sound of your drum kit.
One last thing
Before generating a new variation, lock the steps you want to keep. The guide confirms that locked steps survive generation: you can preserve the core pulse while exploring the rest.
For a short MICROWORLD session, finishing one usable bar is a better goal than collecting several unfinished patterns. Save it, export it, then build the next variation.