What to rap over first
The rule for rap beats for beginners is the same in every style: you need to hear where each bar starts. Busy beats hide it: fast hi-hat rolls, a melody in every gap and drums that skip the expected places all make you guess. A plain pattern at 90 BPM gives each bar about 2.7 seconds, which is room for 10 to 12 syllables at a talking pace.
Skip fast drill and trap at first. They are counted in half time, which is a second skill to learn. Come back to them after you can rap 16 bars on a slow loop without drifting.
- Tempo: 85 to 95 BPM
- Snare on two and four, loud enough to clap along with
- Hi-hats on every eighth note, no rolls
- One melody loop or none at all
How a 16-step grid maps to a bar
A drum machine splits one bar into 16 steps. Steps 1, 5, 9 and 13 are the four beats you count. The steps between are the “e, and, a” of each beat. Once you know this, every pattern is readable: the kick lives near 1 and 9, the snare on 5 and 13, and the hats fill the gaps.
The Rap Beat Maker opens on a boom bap pattern at 90 BPM with kick, snare, hats, clap and 808 already placed. Press Play, look at which squares are lit, and say the count over it.
Build a boom bap beat in ten minutes
Open the Free Beat Maker and press Clear so the grid is empty. Drag the tempo to 90 BPM. Then add one sound at a time and listen after each step.
Loop it for a minute and rap anything over it. If you keep falling off, delete the extra kick on step 11 and try again. Simpler is easier to ride.
- Kick on steps 1 and 11
- Snare on steps 5 and 13
- Closed hi-hat on every odd step: 1, 3, 5 and so on to 15
- Open hat on step 15 for a lift into the next bar
- Optional: 808 on step 1 only, under the kick
Then try a slow trap pattern
Trap feels slower than its tempo because the snare or clap lands once per bar, on step 9. The 808 Drum Machine opens on a 140 BPM trap pattern with a synthesised 808 kick and long bass note. Count it as half time: one, two on the clap, and the bar stretches to about 3.4 seconds.
Edit a single step, then listen. Move the 808 to step 7 and hear the bounce change. Press Variation to flip a few hat, kick and 808 steps at random, and keep what sounds good.
Save and share what you made
The Online Drum Machine and the other grids share two outputs, both free with no sign-up. WAV downloads four bars of the current pattern, 16-bit stereo at 44.1 kHz, which you can loop in any phone recorder or editor. Save link puts the pattern and tempo in the address and copies it, so opening the link brings the beat back.
Know the limits before you plan a song around it. There is no MP3 export, no export past four bars, no per-sound volume or tuning, no melodies and no recording. When an idea is worth finishing, rebuild it in a full music app.
Beginner mistakes and fixes
These show up in almost everyone’s first week on a drum grid. None needs new gear.
- Every square lit. Fix: start from Clear and add four sounds, no more.
- Tempo too high. Fix: stay at 85 to 95 BPM until you can rap 16 bars on it.
- Snare off the backbeat. Fix: put it on steps 5 and 13 and leave it there.
- Never rapping on it. Fix: after every change, rap four bars before you touch the grid again.


