Lo-fi keys

Press Lo-fi below. It's a plain piano phrase run through three small effects: a slow wobble in pitch, a little digital grit and a softened top. Switch between Dry and Lo-fi. The difference is small, and that's the point. The dry version sounds like a piano in a room. The lo-fi version sounds like a piano you remember: an old cassette, a sample lifted from a jazz record, a late-night stream of lo-fi hip-hop. That genre grew up in the 2010s from the dusty, behind-the-beat sound of producers like J Dilla and Nujabes, and its keys are made of exactly these small imperfections.

Will the lo-fi feel come more from big settings on one effect, or small settings on several?

1. Start with chords that feel like a memory

Lo-fi keys borrow from jazz and soul: seventh chords, played soft and close together. A plain C major chord sounds finished, like a full stop. Add a B on top and it turns warmer and a little wistful, as if it's still thinking. That unresolved glow is most of the lo-fi mood before any effect touches it.

Play Cmaj7, then Am7, in the voice-led version. Only one note moves, and only by a step. That's why the change feels like a slow breath out instead of a jump. Now switch to root position: every note leaps, and the mood breaks. Now you have chords that sound like lo-fi before any wobble.

Why: Chords and voicing explains how small voice movements give a progression its shape.

2. Add the wobble of worn tape

Old tape never runs at a perfectly steady speed, so everything recorded on it drifts slightly in pitch. That drift is called wow, and it's the sound of a cassette that's been played a hundred times. In the lab at the top, Wobble sets how far the pitch drifts; the rate is fixed at a slow 0.8 times per second.

Turn Wobble up until the chords sound seasick, then back down until you only notice it on the held notes. Now the piano sounds like it's coming off a tape, not out of a keyboard.

Why: Tremolo, vibrato and auto-pan explains pitch wobble alongside its cousins, level and position wobble.

3. Blend in a little grit

Early samplers stored sound with fewer bits than a CD, and producers loved the crunchy edge that gave old drum breaks and piano loops. Grit blends in a 10-bit version of the signal underneath the clean one. Raise it and the attacks get a dusty, sandpapery edge; at full, the piano sounds broken.

Keep Grit somewhere around a third. Now the grit is something you feel more than hear, and you'd miss it if it disappeared.

Why: Digital audio explains what bit depth is and why fewer bits sound rough.

4. Soften the top

Lo-fi sounds far away partly because it's missing the very top end, the way a sound gets duller through a wall or off an old record. Tone sets where the high end starts to roll off. Bring it down until the piano feels like it's in the next room, then back up a little so the notes stay clear. Now the keys sit behind the beat instead of on top of it.

Why: Filters explains how a low-pass filter darkens a sound.

5. Listen in context

Switch between Dry and Lo-fi one more time, now listening only to the chord changes. If the wobble makes the harmony harder to follow, back it off; the chords are the song, the effects are the weather. Listen again for the chord changes through the texture.

Why: Listening and comparing keeps you honest about whether an effect is helping.

Keep it

Write down your three settings, and the chord pair from step 1. That pair is the seed of a whole lo-fi track: loop it for eight bars, add a lazy drum loop and you're halfway there. To build the full chain in your own session, open MultiFX and set its first three slots to Vibrato, Bitcrusher and Low-pass with the settings you chose.

Quick check

1. You turn every effect to maximum and the track sounds like a joke rather than a memory. Why? Lo-fi works when each imperfection is just below the point where you'd name it. Maximum settings make the effects the subject. Small amounts on several effects add up to a feeling.
2. Your chords sound jumpy even with all the effects on. What do you fix? The voicing, not the effects. Keep the common notes where they are and move the others by a step. Effects can blur an awkward change but they can't make it feel smooth.
3. Why does the wobble go on the keys and not usually on the drums? Pitch drift on sustained chords sounds like tape. On short drum hits there's almost no pitch to drift, so you'd mostly hear timing smear. That's a choice, not a rule; some producers wobble the whole mix for a deliberately warped sound.

Next steps

• Go deeper: Distortion and saturation. Choose how much grit a chord needs, and listen for the new harmonics.
• Use it: Composing with a sampled library. Write a part that suits the keyboard sound rather than fighting its attack.