Padwork for EP–133
■ stopped— bpmnot connected

Connect your EP-133

  1. Plug it into the Mac with a USB-C data cable and turn it on.
  2. Close the EP Sample Tool tab: the EP-133 talks to one app at a time.
  3. Click Connect and allow MIDI access in Chrome.
or try the demo
Pads of the project, laid out like the device. Edit settings on the right; drag a pad onto another to swap or copy. ⌨ A–D group · pad keys as printed (7…E) · Shift = the other source
Drop audio files or folders here
wav, aiff, mp3, m4a, flac… or
you get a list to listen to and pick from before anything is uploaded

Converted in the browser to the device format (46 875 Hz, 16-bit). Uses the next free slots from “First slot”. Factory ranges: kick 1–99, snare 100–199, hat 200–299, perc 300–399, bass 400–499, melodic 500–599.

slotnamelengthchsizeHQused in project
no song yet

Songs → notes, tabs and EP-133 pads

  1. Pick an audio file (or send the parts split on the Export tab here with ♫ transcribe).
  2. The app splits it into instruments, recognises each one, and writes down the notes, drum hits, key, tempo and chords. All on this computer: nothing is uploaded.
  3. Check it on the piano roll (▶ original / notes / both), then read the notation and guitar or bass tablature, export MIDI, MusicXML or Guitar Pro, or put a section on the EP-133's pads, played by real samples cut from the song, in its key.

Works best on clear recordings of one or a few instruments. Heavily distorted guitars, dense mixes and fast runs come out rougher: the notes are a draft to fix, not a finished score.

Export tracks your EP-133 project as separate WAV files (one per group or pad) for Logic, Ableton, mixing or sharing

WAV files for exported tracks, recordings and split parts. Sounds sent to the EP-133 are always 16-bit 46.9 kHz (dithered).

Render tracks approximate, instant

Renders the arrangement from the project and its samples, one WAV per group or per pad, plus the mix. It imitates the EP-133 voices (pitch, volume, pan, envelopes, one voice per pad, group level) but not its effects, filters or time-stretch. For the real sound, record it below.

Record the EP-133 one take, full mix

Records the device's own USB audio (OS 2.5+): exactly what you hear, with effects. With “follow transport” it starts when you press ▶ on the EP-133 and stops at ■.

Bounce tracks from the EP-133 real sound

The real sound, with the device's effects: the app plays the notes to the EP-133 over MIDI, one group or pad at a time, and records its USB audio. Nothing is written to the device. Takes about (song length + 2 s) per track; leave the EP-133 alone meanwhile.

Split a song with AI for sampling: pull the drums, bass or vocals out of a finished mix

Split a song into parts (AI)

Pulls a finished mix apart into vocals, drums, bass and the rest, on this Mac. Use a sound from the device (✂ in Sounds), a recording, or any file. Rights to the separated parts belong to whoever owns the original recording.

Back up a project

Saves a .ppak (same format as the official tool): the project plus the sounds it uses.

Full device backup

All 9 projects and every sound. Takes a few minutes, since the device sends data slowly over MIDI. Don’t unplug it.

Restore a project

From a .ppak/.pak/.tar. The target project is saved as a checkpoint first. Missing sounds are uploaded; occupied slots are never overwritten.

Offline copy on this Mac

Copies every project and every sample from the EP-133 into this browser, so you can open and play them here without the device (Offline button at the top). The first copy of a full EP-133 takes a while (MIDI is slow); later copies only fetch new or changed samples. The pads are muted while it copies.

Checkpoints on this Mac

Taken automatically before every change the app writes to the EP-133 (saves, restores, live pad changes). Stored in this browser.

Play with the mouse or your Mac keyboard (A W S E D F T G Y H U J K O L P, Z/X octave, 1–9 velocity, hold Space = sustain). Where it sounds is the ⌨ keys switch at the top. Mac plays the chosen sound right away (any pad or library sample, also unsaved ones). EP-133 plays the chosen pad at every pitch on its own MIDI channel (no KEYS mode needed; the app gives the pad's group channels 1–12); drum mode hits the group's 12 pads. Picking a pad on the Pads tab makes it the sound here, and the octave follows it (key A = its own pitch). The arpeggiator follows the EP-133 clock when it sends one, otherwise the project tempo.