← App GuideRane OneSwitch device
Platter Play
Melodic scratching: the pads play musical notes by driving the platter. On the Rane One it's the third mode button, printed ROLL.
Load a tone or a sustained sound on the deck, and each pad re-pitches it to a note in your chosen key and scale — so you can play basslines and melodies with the platter as your instrument.
Pads, keys and scales
- 8 pads play 8 notes of the selected scale; 3 note banks extend the range.
- Key, scale, and octave are set per deck, so each deck can play in its own register.
- Pad LEDs are note-colored, so the same note always lights the same color across banks.
- Notes run bottom row first: the bottom pads play the four lower notes of the bank left to right, the top pads the four higher — low to high reads like a keyboard, bottom-left to top-right.

Output modes
Platter Play can produce its notes two ways — set in Platter Play Settings:
| Output | How it works |
|---|---|
| "Motor (spin the platter)" | Physically drives the platter speed — the classic tone-play feel, scratchable |
| "Pitch (shift the audio)" | Shifts the audio digitally, platter untouched |
| "Auto (key lock decides)" | Uses key lock's state to pick the right one |
Chord Voices (Poly Mode)
Turn single notes into chords, per deck:
- Adds the 3rd and 5th above your played note, with adjustable cut-in points and curves — so chords swell in as you open the control.
- Control source: the crossfader or an expression pedal.
- Trigger options: on pad press, on fader open, or on pedal engage.
- BPM Sync rhythmically gates the voices, with divisions from 1/16 up to 1 bar.
Expression pedal
Plug in an expression pedal and use the Learn button in Platter Play Settings: press Learn, move the pedal, and it's mapped. The status line walks you through it.
Settings
Settings → Pad Modes → Platter Play ("Platter Play Settings"):
- Scale and key selectors per deck
- Output mode (see above)
- "Apply Scale to MIDI Keyboard" — an attached MIDI keyboard follows the same key/scale
- Display note names as flats (Db) instead of sharps (C#)
- Chord Voices and pedal setup
Secondary mode
Pressing ROLL again while Platter Play is active switches to User Mode.
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