A sampler is an instrument that records a sound, stores it, and plays it back at any pitch you ask for — from a pad, a key, or a sequencer step. That is the entire definition. A synthesizer builds a sound out of nothing; a sampler takes one that already exists and gives it a new job. Only one of the two occasionally needs a lawyer, and we will get to that.

How a sampler actually works

Three moves. That is the whole machine.

One: it records. A microphone, a line input, a file dragged off an SD card — the sampler does not care what the sound is. A snare, a cello, a kettle coming to the boil, the specific squeak of your studio door. If it makes a noise, it can go in.

Two: it maps. The recording gets assigned somewhere you can trigger it: one pad, or spread across a whole keyboard. Play a higher key and the sampler plays the recording faster, which raises the pitch and shortens it — exactly like a record at the wrong speed. Modern boxes can time-stretch instead, keeping the length while moving the pitch, which is the trick that makes a two-bar loop fit a tempo it was never recorded at.

Three: it mangles. Filters, envelopes, LFOs, reverse, bit reduction. Identical tools to the ones on a synth, pointed at recorded audio instead of an oscillator. This is why a sampler is best understood as a synthesizer with a memory and a past.

One more term, mostly so a spec sheet cannot confuse you. Multisampling means recording an instrument at many pitches and playing strengths, so a soft low note and a hard high note are genuinely different recordings rather than the same one stretched. It is why a sampled grand piano is forty gigabytes and a kick drum is forty kilobytes. Sound on Sound has a good walkthrough of the basics if you want more.

Forty years of very expensive tape

The idea is older than the technology, which is usually how these things go.

The Mellotron arrived in 1963 with an actual strip of magnetic tape under every key. Press a key, a tape head rolls down the tape, you hear eight seconds of a real flute player. It was heavy, it drifted out of tune if you looked at it wrong, and it put string sections on records made in rooms that could not fit one. The Fairlight CMI in 1979 made the idea digital and priced it like a sports car.

Then in 1987 the E-mu SP-1200 did the interesting thing. It sampled at 12-bit and 26.04kHz — worse than a CD, deliberately gritty — and gave you about ten seconds of sampling time total. Ten. Seconds. Producers built entire careers inside that limit, and the crunch of its converters became the sound of an era rather than a compromise anyone apologised for.

The Akai MPC60 followed in 1988, designed with Roger Linn, and set the pad-and-sequencer layout people are still buying today. The same year the rackmount Akai S1000 made 16-bit sampling normal in studios and on film scores.

(I own four gigabytes of drum samples I have never once used, and a folder called "GOOD ONES" containing nine hundred files. The SP-1200 got ten seconds. Draw your own conclusions about whether constraint is the enemy.)

Hardware or software, and the four shapes they come in

A software sampler lives in your computer — the one built into your DAW, or a big library player. Effectively unlimited memory, handles those forty-gigabyte piano libraries without blinking, costs anywhere from nothing to a lot. Its one real weakness is that it shares a screen with your email.

A hardware sampler is a box with knobs. It boots in a couple of seconds, it has one job, and nothing on it wants to notify you about anything. That is a much better pitch than it sounds on paper. Among the boxes, four shapes:

• The groovebox. Sampler plus sequencer plus effects, self-contained, makes finished tracks without a computer. Most modern hardware samplers are this — the Digitakt II and the EP-133 both live here.
• The pad sampler. The MPC lineage. A grid of pads, built for chopping a loop into pieces and playing the pieces back as a performance.
• The performance sampler. Built around live loops and resampling on the fly rather than song arrangement. The Octatrack is the obvious example, and it is a genuinely deep instrument.
• The multisampler. Aimed at building playable instruments out of recordings, with polyphony and proper key mapping. The Tonverk sits here.

One clarification that saves arguments: a rompler plays back preset sounds baked in at the factory and will not let you record your own. Plenty of keyboards are romplers. They are not samplers, whatever the shop floor tells you.

Sampler or synthesizer?

The line used to be a wall. Now it is more of a suggestion.

The honest rule of thumb: if the sound you want already exists somewhere in the world, you want a sampler. If it does not exist yet, you want a synthesizer. That covers about ninety percent of decisions.

The other ten percent is why modern gear refuses to pick a side. The Digitakt II has a synthesis engine next to its sample engine, the Tonverk treats recorded audio with tools you would expect on a polysynth, and loading a single-cycle waveform into any sampler builds you a wavetable synth, technically and annoyingly.

If you want both, that is not indecision, that is Gear Acquisition Syndrome, and I say that as someone who has it and works somewhere that sells the cure and the disease from the same room.

What people actually make with them

Four uses cover nearly everything you hear.

Building a drum kit. One-shot recordings of a kick, a snare, a hat, laid across pads and sequenced. This is the most common use by a wide margin, and it is why so many samplers ship looking like drum machines.

Chopping a break. Take a few bars of recorded drums, slice them into individual hits, and replay them in a different order at a different tempo. The Amen break — roughly six seconds from a 1969 B-side by The Winstons — got chopped into so much jungle, hip-hop and drum and bass that it is arguably the most reused piece of audio in history. Nobody involved got rich from it, which tells you something about the next section.

Turning any recording into an instrument. Record one note of a cello, map it across a keyboard, and play chords that no cellist agreed to. This is where sampling stops being drums and starts being composition.

Texture and found sound. Room tone, a tram passing, a radiator clank pitched down two octaves until it becomes a bass drone. Free, unrepeatable, and completely yours.

The legal part, and the way around it

Sampling is not illegal. Using somebody else's recording without permission is, and those are two very different sentences.

A commercial release usually involves two separate rights: the master, which is the specific recording, and the composition, which is the song underneath it. Clearing a sample means getting permission for both, from whoever holds each. It costs money, it takes time, and the answer is frequently no. We sell instruments and cannot give you legal advice, so if you are releasing commercially, ask someone who can.

Here is the part the other explainers skip, and it is the best news in this article.

Record your own source material. Anything you record yourself is already yours. No clearance, no forms, no waiting on a publisher who has not answered an email since March. A cupboard door, a bike bell, a coin dropped on a radiator, your own guitar through a bad amp — all of it is licence-free and, better than that, nobody else has it. The most-sampled break in history is on ten thousand records. The sound of your kitchen is on none.

The best sample library in the world is the room you are standing in, and it came pre-cleared.

The sampler ladder, honest prices

Here is what we stock, switch on, and argue about on the shop floor, cheapest first. Prices are today's shelf, and shelf prices move. Every one of these is the right answer for somebody.

• The one that costs less than a pedal. The Teenage Engineering PO-33 K.O! at around 94 euro is a credit-card-sized sampler with a built-in mic. Not a toy — a constraint machine, and it tells you within a week whether sampling is your thing.
• The easiest way into Elektron. The Elektron Model:Samples at around 299 euro gives you six tracks, one knob per function, and the Elektron sequencer that people fall in love with.
• The one everybody actually buys. The Teenage Engineering EP-133 K.O. II at around 328 euro has a proper sampler workflow, punch-in effects and a speaker built in. You can genuinely make beats on it during a train journey.
• The compact studio brain. The 1010music Blackbox at around 723 euro is a touchscreen sampler that behaves like a small studio — sixteen pads, clip launching, and it plays extremely well with other gear.
• The MPC with keys. The Akai Pro MPC Key 37 at around 749 euro is a fully standalone MPC with a 37-note keyboard. For people who want the MPC lineage but would rather play parts than tap them.
• The one most people keep. The Elektron Digitakt II at around 937 euro is sixteen tracks, a synth engine alongside the sampler, and the sequencer that made the original a modern classic. Buy one sampler and never buy another, and statistically it is this.
• The polyphonic one. The Elektron Tonverk at around 1,223 euro is a multisampler built for turning recordings into properly playable instruments, with the polyphony to back it up.
• The deep end. The Elektron Octatrack MKII at around 1,615 euro is a performance sampler with a reputation for a steep learning curve, entirely earned. People who climb it do not go back. People who do not climb it sell it within a year.

Which brings me to the one strong opinion here: workflow beats specifications, and it is not close. The SP-1200 that shaped a genre ran at 12-bit with ten seconds of memory. Every box on that list obliterates it on paper, and none of that is why anyone finishes tracks. Buy the cheapest one whose layout makes sense to you within ten minutes of switching it on. The 1,615 euro Octatrack in a drawer produces exactly nothing; the 94 euro PO-33 in your bag produces songs.

What you need around the box

Less than you would think, which is unusual for this shop to admit.

Headphones or monitors. Non-negotiable, and more important than which sampler you pick. You cannot judge a low end you cannot hear.

An audio interface — sometimes. Most modern samplers have a headphone output and send audio over USB, so you can start with nothing else. You want an audio interface once you start sampling through a microphone or recording the box into a computer properly. Not before. There is a longer guide on choosing one for when you get there.

A decent SD card, and a backup habit. Your samples and projects live on removable storage. Cards fail. Back them up somewhere that is not the card.

A cable you did not find in a drawer. Nine times out of ten a crackle is a tired jack, not a dying sampler. Reseat it before you panic.

One more thing, and it is the bit no article can give you. Our showroom in central Warsaw has a wall of synthesizers, drum machines and samplers, all plugged in. Bring an SD card or a recorder, sample whatever you like, and take the sounds home — they are yours, cleared, and nobody else on earth has that exact recording of that exact machine in that exact room. It costs nothing. Or take a sampler itself on a free 30-day Test-Drive: we sign a short contract covering the gear and the dates, you use it on real music in your real room, then you decide. Everything carries a 36-month warranty and a 30-day return window, we ship to every EU country, and within Poland delivery is free over 900 zł.

Straight answers

So: it records a sound, it plays the sound back wrong on purpose, and that is most of modern music. Start cheap, keep the box somewhere you will actually see it, and sample your own kitchen before you sample anybody's record. If you would rather press the pads before you commit, we are on Nowogrodzka 6A/102 in Warsaw, weekdays 10:00 to 19:00 and Saturdays 12:00 to 17:00. Bring an SD card. Bring the door squeak. We have heard worse ideas, and one of them is currently on a record.