Y2K Player Get the app

Slow the song down.
Learn the choreography.

Drop a track, pull the tempo to 85%, and drill the section until your body knows it. No upload, no account.

  • Tempo & pitch, linked
    50–200%, like a record — drag either slider, hear it live.
  • Nothing uploads
    The song never leaves your device. No server, no account, no queue.
  • Free export
    MP3 or WAV, the whole song, rendered in seconds.
  • Real reverb
    Six rooms, small to large, with a mix control.
  • Any common format
    MP3, M4A, WAV, FLAC in; MP3 or WAV out.
  • The app goes further
    Library, playlists, visualizers, video export — free on iPhone & iPad.

The app

This tool comes from a full music player.

Y2K Player is a music player for iPhone and iPad. It plays your own files at any speed, remembers the settings for every song, and has themes that change how the whole app looks. Every phone in this row is the same app with a different theme.

Visualizers

Visualizers drawn live from the music.

While a song plays, the app can show a visualizer generated from the audio in real time. You can switch visualizers during the song, and the app’s video export uses them as the background.

Free on the App Store
Download on the App Store

First, the honest part: slower also means lower

In this tool, tempo and pitch are linked. Slow a song to 85% and the whole track drops about 2.8 semitones — the same thing that happens when a record spins slower than it should. That is a real trade, and you should know it before you press play.

For dance practice, the trade is usually fine. You are not singing along and you are not matching an instrument. You are counting, and counts do not care what key the song is in. The beat at 85% lands exactly where the beat at 100% lands — just later. Every "5, 6, 7, 8" is still a "5, 6, 7, 8".

Some people still want the song slower without the pitch drop, so the track keeps its original key and the voices sound normal. That is an unlinked tempo-and-pitch mode, and it is an app feature, not a web feature. The Y2K Player app can slow the tempo while holding pitch at zero, and it remembers the setting per song. This page's tool is the quick, linked version: open a browser, drop a file, practice. When the pitch drop starts to bother you, the app is the proper practice setup.

75-90% is the practice band

Almost all choreography drilling happens between 75% and 90% of original speed. Slower than that and the movement stops feeling like the movement; faster and you are not really giving yourself room to learn.

The reason the band works is simple: slowing a song scales everything evenly. Every beat gets longer by the same amount, so the rhythm keeps its shape. An 8-count is still an 8-count. A hit that lands on the "and" of 4 still lands on the "and" of 4. Your timing map transfers directly back to full speed — you are learning the real timing, just with more time to execute it.

Practice tempos, what they are for, and the pitch cost at each
TempoUse it forPitch drop
90%Polishing. The routine is learned; you are cleaning transitions and texture.about -1.8 semitones
85%The main drilling speed. Slow enough to think, fast enough to still feel like dancing.about -2.8 semitones
80%New material. First runs of a section you have just been taught or just marked out.about -3.9 semitones
75%Hard sections: fast footwork, direction changes, anything your body refuses at speed.about -5 semitones
50%Only for untangling a single count of very fast footwork. Musicality disappears here.-12 semitones (one octave)

Ladder up, do not camp

The common mistake is staying at one slow speed until it feels perfect, then jumping straight to 100% and falling apart. Move in small steps instead: 80%, then 85%, then 90%, then 95%, then full speed. Each step is a small adjustment your body can absorb. The tempo slider here moves in fine steps, so you can climb the ladder without guessing.

Loop the section, not the song

Practice time goes to whatever is between your loop points. If the loop is the whole song, most of your session is spent on the parts you already know.

Set the loop around one section — one 8-count, or one phrase of the choreography — and let it repeat. The waveform view helps here: choruses and drops are visibly louder, so you can place loop points by eye instead of scrubbing around by ear. Ten focused repetitions of the hard 8-count teach you more than three full run-throughs.

Anchor on a layer, not the blur

A useful side effect of slowed playback: the layers of the track separate. At 85% you can pick one element — usually the hi-hat or the snare — and count against it directly instead of against the overall wash of the song. Choose the layer that marks your counts, lock your "1" to it, and it will still be there when you return to full speed. Dancers who count to the vocal often drift, because vocals push and pull around the beat on purpose; drums do not.

A note on volume

Slowed audio can feel quieter than the original, and long practice sessions make it tempting to keep turning it up. Set the volume once at a level where you can still hear someone speak in the room, and leave it there. Your ears are practice equipment too, and a two-hour session at high volume costs you more than it gives. The volume control in the tool is separate from the tempo, so slowing the song does not require touching it.

Start to finish: a practice session

1. Drop your song into the tool above, or press play on the demo track to test it first.
2. Pull the tempo slider to 85%. The pitch drops with it — that is the linked behaviour, and it is fine for counting.
3. Find your section on the waveform and set the loop around it. One section, not the whole track.
4. Drill it. When it holds together three times in a row, raise the tempo by 5% and go again.
5. When you reach 100%, run the whole song once to put the section back in context.
6. If you want a slowed copy for the studio or your phone, export it as MP3 or WAV — the export is free and covers the whole song. A short spoken note plays after the song ends, and you can crop it off.

When practice is a habit, not a one-off

You love drilling choreography? There is a player for that.

Y2K Player is a music player for iPhone and iPad built around exactly this kind of use. It saves each song's settings — so your practice track opens at 85% tomorrow because that is where you left it — and it has the one thing this web tool honestly does not: unlinked tempo and pitch. Slow the song and keep it in its original key, so the voices sound like themselves while you learn.

It also has loop and trim on a proper waveform, playlists and a library, and it works offline with no account — useful in studios where the wifi is a rumour. If you post practice videos, it exports video at 1080p over visualizers. Free to use. Pro is one payment — forever.

Questions people actually ask

Dance practice questions, answered straight.

What speed should I practice choreography at?
Start at 80-85% for new material and drill at 85%. Use 75% for the sections your body refuses at speed, and 90% for polishing once the routine is learned. Step back up in 5% increments rather than jumping straight to full speed.
Do the counts change when I slow the song down?
No. Slowing the tempo scales every beat evenly, so the rhythm keeps its exact shape. An 8-count is still an 8-count, and a hit on the "and" of 4 stays on the "and" of 4 — everything just arrives later.
The song sounds lower when I slow it. Is that normal?
Yes. In this tool tempo and pitch are linked, like a record played slower: 85% speed is about 2.8 semitones down. For counting and drilling that rarely matters, since the timing is unchanged.
Can I slow the tempo without changing the pitch?
Not in the web tool — here the two are linked by design. The Y2K Player app has an unlinked mode that slows tempo while holding the original key, and it saves the setting per song. That is the better setup for regular practice.
Can I loop just one section of the song?
Yes. Set loop points around the 8-count or phrase you are drilling and it will repeat until you stop it. The waveform makes sections easy to find, because choruses and drops are visibly louder.
Can I export the slowed version?
Yes, as MP3 or WAV, free, and the export covers the whole song. A short spoken note plays after the song ends, and you can crop it off. Useful for playing the practice version from a studio speaker.
What tempo range does the tool cover?
50% to 200% of the original speed, with pitch linked across the whole range. For dance practice you will live between 75% and 90%; 50% is only worth it for untangling one count of very fast footwork.
Do I need to install anything?
No. The tool runs entirely in your browser on a phone, tablet, or laptop. Open the page, drop a song, practice.
Does my song get uploaded?
No. The song never leaves your device — the slowing happens in your browser, on your machine. There is no server copy, no account, and nothing to delete afterwards.
Does this work on a phone in the studio?
Yes. It runs in the mobile browser, and the exported MP3 works anywhere. If you practice from your phone regularly, the app is more comfortable: it works offline, keeps playlists, and remembers each song's practice speed.
Why does the slowed track feel quieter?
Stretching a track can soften its punch a little, and lower pitch can read as quieter to the ear. Use the volume control rather than your speaker's maximum, and keep the level low enough for a long session — your ears do a lot of work in practice too.
Can I also speed the song up past 100%?
Yes — the slider goes up to 200%. Some dancers run a finished routine at 105-110% so that full speed feels easy afterwards. Save that for material you already own; it sharpens a learned routine but teaches a new one badly.

The choreography is not too fast. It is just too fast today.

Slow it to 85%, drill the section, ladder back up. Free, in your browser, no upload.

Free to download and keep. Pro is a one-time purchase — buy it once and it never renews.