Move before you name anything.
Stomp. Stomp. Clap. Rest. It is a small, familiar rhythmic skeleton: two low hits, one bright answer, then a space before the cycle returns. Press PLAY. Do not count yet; let your foot follow the repeating pulse and say the four words aloud.
- 01 / HearListen through two complete loops before touching the grid.
- 02 / MoveTap an even pulse with one foot while the pattern plays.
- 03 / SpeakSay “stomp, stomp, clap, rest” with the four eighth-note slots.
- 04 / RecallStop playback and perform the cycle once without the machine.
Press Play to start the drum machine.
This exercise isolates the stomp-stomp-clap pattern. Listen to Queen's recording for the layered stomps, handclaps, voices, and room sound that give those three attacks their weight.
Queen built the recorded stomp from repeated performances and delayed layers, making a small studio group sound like a much larger crowd. The grid captures each event’s starting point, while the record adds spread, scale, and room. Twenty-five years later the same cell opens a hip-hop record; you will compare the two in Part 03.
History & lineageTrade the hand and foot partsKeep the same rhythm while changing which limb plays each part.
Clapping and stamping can divide the work between two parts of the body. Keep the stomp pattern steady with your feet and clap its backbeat. Then exchange the parts: tap the low rhythm with your hands and mark 2 and 4 with your feet. Notice which version makes it easier to keep counting through the unplayed eighth note.
Listen deeperFrom grid pattern to finished recordingThe boxes show when new hits begin; they do not capture every property that makes a record feel distinctive.
A pattern is the repeatable relationship among events. A performance adds touch: how hard a person strikes, whether a hit leans early or late, and how one cycle differs from the next. A recording adds bodies, instruments, room sound, microphones, layering, processing, edits, and the other parts of the arrangement.
Listen to one complete stomp-stomp-clap cycle on the record, then pause it. Recreate the three attacks on a table. On the next pass, listen only to what continues after the clap: its decay and the surrounding room sound. The empty grid position is time without a new attack, even while the previous sound continues.
The grid marks when a hit is scheduled. Attack shape and duration can make that hit seem slightly earlier or later, so use the boxes to study placement and your ears to judge the finished groove.
Sixteen boxes. One bar of 4/4.
First find the pulse: the steady reference you could tap along with. A beat is one counted unit of that pulse; in this 4/4 exercise, four beats form one bar, and beat 1 is the bar’s downbeat. Each beat is divided into four equal sixteenth-note subdivisions, spoken 1 e & a. Four beats multiplied by four subdivisions gives the sixteen positions on the grid.
The regular reference you can tap, even when no drum hits it.
The pattern of events and rests placed against that pulse.
One numbered count in the bar: 1, 2, 3, or 4 here.
One repeating group of four beats in this 4/4 exercise.
Splitting each beat into equal smaller units. Here each beat splits into four sixteenth notes, so a hit can begin on any of the four.
Beat 1: the first counted beat of a new bar.
Read one complete bar
| Count | 1 | e | & | a | 2 | e | & | a | 3 | e | & | a | 4 | e | & | a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Box | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
Boxes 1, 5, 9, and 13 are the four numbered, on-beat positions; box 1 is the downbeat. Any position that is not a numbered beat is off the beat. Boxes 3, 7, 11, and 15 are the offbeat eighth notes, the & positions halfway between numbered beats; the e and a boxes are off the beat as well. Counting only a numbered beat and its & gives two eighth-note positions per beat; including e and a gives four sixteenth-note positions.
From boxes to notation
The time signature 4/4 means four beats in every bar, and one quarter note counts as one beat. This machine names its lanes instead of printing notes on a staff: Kick is the low drum voice, Clap is the bright hand-clap voice, and each lane is one row of sixteen boxes.
| Value | Length | In this bar |
|---|---|---|
| Quarter note | One beat: four boxes. | Boxes 1 to 4 are one quarter note’s worth of time. |
| Eighth note | Half a beat: two boxes. | The count 1 & is two eighth notes. |
| Sixteenth note | A quarter of a beat: one box. | The count 1 e & a is four sixteenth notes. |
| Rest | The same lengths with nothing starting. | A quarter rest is four boxes of no new hit; an eighth rest is two. On this grid a rest is a box you leave switched off. |
The stomp pattern reads, in eighth notes: kick, kick, clap, rest; kick, kick, clap, rest. Write that count on paper before Part 03: 1 & 2 (&) 3 & 4 (&), with the empty slots in parentheses.
Now test the map. Before pressing play, place a kick on box 1 and predict when it will sound. Add a clap on box 5. Then move either hit one box to the right and listen again. Toggle both boxes off when you are done; every active step is reversible. After those comparisons, spend one minute exploring freely.
Where does box 11 fall in the spoken count?
In this bar, how many boxes does one eighth note cover?
NumbersKraftwerk
Computer World (Remastered) recording
Listen firstWhich sounds feel locked to a repeating cycle, and which details seem to move around it?
Reveal the listening guide
ConnectionRelated machine-sequencing technique
Listen forHear how repeated electronic percussion and counted voices turn regular machine cycles into an arrangement.
Instrument noteWhy sixteen buttons became a musical instrumentBartos’s sequencer had sixteen switches per row and one row given entirely to the kick; which switches to close was still his decision.
Karl Bartos recalls two sixteen-step sequencers with little switches, one row all kick drum, on stage with Kraftwerk on their 1981 tour, synchronised to a drum machine by a unit an engineer built for them. Sixteen switches per row is the same arithmetic you just counted: four beats, four subdivisions each.
Compare Bartos's description of the sequencer with the repeating drum parts in “Numbers.” Listen for what stays fixed as the voices enter.
History & lineageHow “Numbers” helped shape “Planet Rock”Arthur Baker described a direct influence, followed by new programming, synthesizer work, and performance.
Arthur Baker recalled hearing “Numbers” in Brooklyn and wanting to bring its electronic percussion feel into “Planet Rock.” The team programmed a new rhythm on a TR-808 while using the Kraftwerk record as a guide. Afrika Bambaataa also pointed to “Trans-Europe Express,” and John Robie added synthesizer parts. They rebuilt and transformed the source material instead of lifting the “Numbers” audio intact.
- Records they drew from
- Kraftwerk’s “Numbers” supplied the rhythmic reference; “Trans-Europe Express” supplied melodic material.
- Production direction
- Afrika Bambaataa and Arthur Baker selected, combined, and redirected those references for a New York electro record.
- Programming and synthesizers
- A local musician who owned a TR-808 programmed the rhythm under the team’s direction. John Robie developed and performed synthesizer parts.
- Performance
- Soulsonic Force supplied the vocal performance and the record’s group identity.
Decode the stomp.
Zoom out from sixteenth notes for a moment and read only the eighth-note positions: 1 & 2 & · 3 & 4 &. The pattern is a two-beat cell with four eighth-note slots: kick on beat 1, kick on the & of 1, clap on beat 2, then no new hit on the & of 2. The cell repeats across beats 3 and 4.
Key for this example: kick in the bottom space, clap in the third space from the bottom. All notes are eighths. The two rest signs leave the & after each clap empty; the recorded clap may still ring. Staff positions and stem conventions vary between drum charts, so read each chart’s key. You can complete the lesson using the count and grid alone.
A rest means “do not begin a new event at this position.” It does not guarantee acoustic silence: the previous clap may still decay, a room may ring, and other instruments may continue. The unfilled position still shapes the rhythm because it leaves room before the next kick.
The first kick begins on a numbered beat. The second arrives on an offbeat &, pulling the cell forward.
Here the claps accent beats 2 and 4. Those recurring accents are the backbeat; the term does not mean the entire pattern.
Tap the eight even eighth-note positions on your leg. Say “1 & 2 & 3 & 4 &.” Stomp on 1, & of 1, 3, and & of 3; clap on 2 and 4. Keep the final & of each cell empty. Repeat until the count and the movement agree.
Rhythm ideaWhy another grid may put the clap on beat 3Beat labels depend on the pulse level you choose; the sound alone does not print numbers in the air.
This lesson follows the approximately 82-BPM rock pulse: the first stomp is beat 1, the second is the & of 1, and the clap is beat 2. The cell repeats over beats 3 and 4, so the claps function as the backbeat. Open Music Theory uses the recording as an example of a basic rock beat made with feet and hands instead of kick and snare. To check that pulse yourself, count only the stomps for fifteen seconds and multiply by four: four stomps fill each bar of four beats, so the number you get lands near 82.
If you count each short gap as a full beat, you can label the sounds “1, 2, 3, rest,” but your count is now roughly twice as fast. That can be a useful alternate hearing; it is not the same 82-BPM grid. Whenever someone says two records have the same beat, ask which pulse, bar, passage, and subdivision they compared.
If boxes 3 and 11 are removed, but the claps remain on boxes 5 and 13, what changes?
We Will Rock YouQueen
Official music video using the studio recording
Listen firstCan you keep the repeated body-percussion skeleton going while the rest of the arrangement changes?
Reveal the listening guide
ConnectionRecognizable onset skeleton; simplified transcription
Listen forAt the course’s approximately 82-BPM count, hear stomps on 1 and the & of 1, then a clap on 2; the cell repeats so the claps answer on 2 and 4. Voices, guitar, dynamics, delays, and stereo spread live beyond those boxes.
’Till I CollapseEminem feat. Nate Dogg
The Eminem Show album version. Explicit lyrics.
Listen firstWhen the full beat enters, does the clap still fall on 2 and 4 of your slow count?
Reveal the listening guide
ConnectionThe same stomp-stomp-clap skeleton, carried into a hip-hop record
Listen forFrom the first seconds, the interpolated stomp-stomp-clap figure runs the cell you just decoded: a low hit on 1, a low hit on the & of 1, a bright answer on 2, nothing on the & of 2. Tempo listings give about 171 BPM, a count that treats every one of those hits as its own beat; halve it to about 86 and you are back on the slow pulse you used for the Queen record. When the drum kit and bass enter, those onsets stay where they are and a kick, a snare, and hats join them. That is Lesson 02.
Rhythm ideaWhy the unplayed slot still mattersKeep counting through the rest. The next attack still has a place in the bar.
Fill box 7 with another clap and the cycle becomes denser. Remove it again and the next kick regains more space. The grid has not changed speed; only the event density has changed. Producers often learn as much by muting or removing events as by adding them.
Try that A/B comparison in the next machine after you finish the target. Describe the result without calling either version “correct.” The useful question is: what did the added event do to space, expectation, and forward motion?
From count to grid.
The first grid is empty and the target is printed above it. Press ▶ TARGET · COUNT-IN + 1 BAR: four rim clicks count 1, 2, 3, 4; say them aloud and keep counting through the bar that follows. ▶ SLOW · 75% TEMPO plays the same thing at about 62 BPM when a box goes by too fast. Build one two-beat cell, predict where its repeat belongs, then complete the bar and press CHECK MY GROOVE. The check compares your grid with the target.
- 01 / CountSay “1 & 2 &” out loud with the count-in clicks before entering any steps.
- 02 / First cellKick boxes 1 and 3; clap box 5; leave box 7 empty.
- 03 / PredictWork out the repeated box numbers before looking back at the map.
- 04 / CheckComplete the second cell and read every line of the report.
Placement is the learning goal here. Velocity and swing readouts are introduced later; you do not need to optimize them now.
Now the target grid is hidden. It keeps the same first half and the same claps, but one later kick moves by one sixteenth-note position. Listen first. Count through beats 3 and 4, make a prediction, and rebuild the pattern by ear before opening a hint.
Hint 1Narrow the listening windowOpen only after one complete attempt.
The first half is unchanged. Listen only between beat 3 and beat 4, and tap the four sixteenth-note positions 3 e & a while the target plays.
Hint 2Isolate the voiceOpen if the smaller listening window was not enough.
The clap lane has not changed. Compare only the second kick in the second half of the bar.
Commit to an answer before you reopen the grid. Play the target once more, count 3 e & a, and choose.
In the second half of the hidden bar, where does the last kick land?
That one-box move is a displacement: one onset moved one subdivision to the right, and nothing else changed. Words such as “late,” “lurching,” or “less square” describe what you felt; the observation is the box number.
One box at 82 BPM is about 183 ms (60 divided by 82, divided by 4). The kick now lands one box before the beat-4 clap, so the clap answers it almost at once; Lesson 06 gives that relationship a name. A displacement is not a microtiming nudge: the NUDGE control keeps a hit in its box and moves it by at most 30 ms, six times less than the move you just made.
One more hidden bar. The claps have not moved and the first half is the stomp again, but the last kick has moved one box in the other direction. Play the target twice, then take one pass at ▶ SLOW · 75% TEMPO. Tap only the kicks on your leg. Decide whether the two kicks in the second half are close together or far apart before you place anything.
Hint 1Narrow the windowOpen only after one complete attempt.
Listen only from beat 3 to beat 4 and tap 3 e & a. Two kicks now fall inside that beat. The four rim clicks before the bar give you the numbered beats to count against.
Hint 2Name the gapOpen if the smaller listening window was not enough.
The two kicks are one box apart. At 82 BPM that is about 183 ms; at ▶ SLOW · 75% TEMPO it is about 242 ms. Decide whether the second one lands on e, &, or a.
Reveal · after your attemptName the directionUse this to explain the answer after your attempt, or when you decide to reveal it.
The last kick moved from box 11, the & of beat 3, to box 10, the e of beat 3: one sixteenth earlier. Boxes 9 and 10 together make a double, two attacks a sixteenth apart. Compare it with the previous target, where the same kick moved one sixteenth later and became a lead-in to the clap.
Two hidden bars have now moved the same kick in opposite directions. Moved late, it sits one box before the clap and pulls your ear toward beat 4. Moved early, it doubles the beat-3 kick and the space before the clap opens up. Nothing else changed: same claps, same tempo, same bar.
When you hear a groove lurch or roll, start by asking which single onset moved, and which way.
Same placements, different pace.
BPM means beats per minute: raise it and the beat markers pass more often; lower it and they pass less often. The machine below begins at 122 BPM with kicks on all four numbered beats and closed hats on each &. Listen for this four-on-the-floor foundation in disco, house, and techno, then compare the other drum parts around it.
- 01 / SlowSet approximately 90 BPM. Choose three neutral words for what you notice.
- 02 / MiddleReturn to 122 BPM. Keep every step in the same place.
- 03 / FastTry approximately 140 BPM. Tap the same four numbered beats.
- 04 / IsolateTurn boxes 3, 7, 11, and 15 in the hat lane off, then on. What do the offbeats add?
At 140 BPM the four kicks arrive every 429 ms; at 90 BPM, every 667 ms. The number of events in the bar, eight with the hats and four without, did not change. Name the tempo and the event count separately.
You raise BPM from 90 to 140 without touching the grid. What changed?
Around the WorldDaft Punk
Official remastered music video
Listen firstWhich layer could disappear while the four-kick floor remains recognizable?
Reveal the listening guide
ConnectionShared four-on-the-floor kick anchor
Listen forCount the recurring kick on beats 1, 2, 3, and 4, then notice how bass, hats, vocals, and arrangement create a much larger musical system around it.
Try it in a trackHear past the four kicksThe kick stays steady while the rest of the record changes.
Keep counting 1, 2, 3, 4 on the kick while the bass and the vocal drop out and come back. When the kick is the only thing left, your count still holds; that is the job a steady anchor does for a listener. It is also why a one-bar grid can be accurate about placement without describing the whole arrangement.
History & lineageEarl Young and Philadelphia’s disco rhythm sectionEarl Young helped popularize the combination of a kick on every quarter note, a backbeat, and an active hi-hat.
Drummer Earl Young is widely credited with helping codify and popularize the disco-era combination of an audible kick on every quarter note, a backbeat, and animated hi-hat work. In PBS’s Disco: Soundtrack of a Revolution, Young demonstrates that approach while discussing “The Love I Lost.” Young worked within a larger Philadelphia team that included bassist Ronnie Baker, guitarist Norman Harris, MFSB, producers Kenny Gamble and Leon Huff, singers, arrangers, engineers, DJs, and dancers.
Quarter-note kick patterns had already appeared in jazz, R&B, and rock. Young’s importance lies in making that pulse prominent within disco’s backbeat, hi-hat movement, longer arrangements, and dance-floor setting. Later drum machines made the pattern easy to repeat after musicians and dancers had already established its use.
What Chicago DJs, dancers, and producers then did with that steady kick is the subject of Lesson 24; this lesson stays on what the four positions do to your count.
Make one choice at a time.
A blank machine offers too many decisions at once, so begin from the familiar teaching skeleton and change it deliberately. Make one change, listen through two loops, then keep it or reverse it. Leave at least one box empty on purpose, and be ready to say which hit anchors the bar.
- 01 / AnchorKeep the claps on boxes 5 and 13 so the backbeat remains clear.
- 02 / TransformMove exactly one kick. Listen before deciding whether to keep the move.
- 03 / Add motionAdd closed hats on the offbeat boxes 3, 7, 11, and 15; then remove at least one.
- 04 / Add colorAdd one rim or percussion hit in a slot that was empty. Remove it again, compare, then decide whether the color earns its place.
- 05 / Preserve and explainChoose one possible hit to leave empty. Say which event anchors the bar, which creates surprise, and what that intentional space contributes.
- 06 / Save or exportName the variation, create a share link, confirm that it reopens your pattern, and choose one export: WAV for audio or MIDI for editable notes in a DAW.
- My anchor is the ___ on box ___ because it is the hit I would miss first.
- My surprise is the ___ I moved to box ___, the ___ of beat ___.
- I left box ___ empty so that the ___ on box ___ has room.
Worked example, using the stomp with one kick moved: my anchor is the clap on box 13, because it is the hit I would miss first. My surprise is the kick I moved to box 12, the a of beat 3. I left box 15 empty so that the kick on box 1 has room.
Try it in a trackWhat the advanced controls changeExplore these after the six-step assignment; none is required to complete the starter lesson.
- Velocity
- Changes the programmed strength of an individual event.
- Nudge
- Changes an event's scheduled onset by milliseconds without assigning it to a different box.
- Ratchet
- Retriggers a sound inside one step to create repeated attacks.
- Swing
- Changes the spacing of alternating subdivisions across the groove.
- Sound / kit
- Changes the instrument’s synthesized sound palette.
- Decay
- Changes how long a lane's synthesized voice rings. It can alter overlap and articulation without moving a hit.
For a first sound experiment, leave every box fixed and shorten the clap decay. Does the rest after it become easier to hear? Return to the original decay before moving a kick. Lesson 14: Sound Shaping I develops this distinction between when a drum starts and how long it speaks.
Can you explain what you built?
- I can count 1 e & a through a complete bar and locate boxes 1, 5, 9, and 13.
- I can distinguish pulse, rhythm, bar, subdivision, rest, offbeat, and backbeat.
- I rebuilt the mapped pattern and both hidden variations, and I can name the kick that moved and the direction it moved each time.
- I can explain the difference between changing BPM and moving an event.
- I made a constrained variation and can identify its anchor, surprise, and intentional space.
- I can distinguish a shared grid placement from a match between two complete recordings.
Your three completed exercises are remembered in this browser. The creative jam is not restored automatically, so use SHARE LINK to preserve its pattern and settings. WAV captures audio; MIDI preserves editable note events for a DAW.