op-xy agent

auxiliary

Brain

The brain () works out the key and scale of the tracks routed into it, and its keyboard transposes them in key — live, or sequenced as notes on the brain track.

A fast way to write: sequence a beat, a bassline and one chord, then play or sequence root changes on the brain track. Take leads and drums out of the routing when they should stay put.

How to

Take a track into or out of the brain

  1. 1
  2. 2
  3. 3 the track's encoder; an encoder click toggles the page, tracks 1–4 or 5–8

Details

  • The brain detects the key and scale of the routed tracks and transposes them musically — the whole song or only some tracks.

    TE’s guide
  • On the brain track, the keyboard transposes every routed track.

    TE’s guide
  • Brain notes recorded into its sequence play back as transpositions, so a one-bar idea follows a chord progression.

    TE’s guide
  • The brain's manual mode lets you set the key yourself when detection gets it wrong.

    TE’s guide
  • Tracks left out of the routing on M2 are neither transposed nor used for key detection.

    TE’s guide
  • In a new project tracks 3–8 are routed to the brain and drum tracks 1 and 2 are not.

    community
  • The brain has seven scales, shown in this order as major, dorian, phrygian, lydian, mixo (mixolydian), minor and locrian.

    checked on a unit · 1.1.33
  • Brain settings are stored per pattern.

    TE’s changelog
  • The brain's routing is stored per pattern, not per scene.

    TE’s changelog
  • Arpeggiator notes follow the brain; OS 1.1.17 fixed arpeggios ignoring it.

    TE’s changelog
  • The brain's is headed with the current key, such as c major, and draws a mini keyboard marking the scale's notes. Manual mode shows a hand and the root and scale fields; auto mode shows a brain head instead.

    checked on a unit · 1.1.33
  • slides in from and shows an in bracket running from the brain to track boxes 1–8, each on or off.

    checked on a unit · 1.1.33
  • The brain has no filter page; CC32 and CC35 on its channel change nothing.

    checked on a unit · 1.1.33
  • Over MIDI, CC12–15 on the brain's channel (9) drive its four encoders; CC12 shows manual at 0 and auto at 127.

    checked on a unit · 1.1.33

Parameters

parametergesturerangecc
manual / auto M1turn dark grey encoder–12
root M1turn mid grey encoder12 notes, c … b13
scale M1turn light grey encodermajor / dorian / phrygian / lydian / mixo / minor / locrian14
link M1turn white encoder–15

Our wording, for OS 1.1.33. TE’s page source

no device
os –
view simulated