your teenage engineering gear, running your mac.

t-switcher turns the TP-7, EP-133 K.O. II and TX-6 into a control surface for macOS. every button, wheel and rocker becomes a shortcut, a media key, a shell command — with a different map for every app, switched automatically.

get the beta …and there's an arcade

macOS 13+ · usb or bluetooth · no drivers

tp-7 · full support ep-133 k.o. ii · pads tx-6 · buttons + encoder
t-switcher control mode: the TP-7 face, control index and action inspector

01how it works

plug in. it just shows up.

01

connect

usb or one-click bluetooth-le pairing — no Audio MIDI Setup detour. the moment your device connects, t-switcher switches to it by itself.

02

map anything

click a control on the rendered device — or twist the real one with midi-learn — and record a keystroke. text, media keys, system volume, shell commands, app launches: all fair game.

03

switch apps

each app gets its own profile. bring Final Cut to the front and the jog wheel scrubs the timeline; switch to anything else and your global map is back. zero clicks.

02the details

built like the gear it plugs into.

per-app profiles

profiles follow the frontmost app automatically, with a global fallback. add any running app in two clicks.

final cut pro deck

ships with a TP-7 editing map: jog scrubs frame-by-frame, the rocker jumps between edits, transport plays and blades.

true wheel volume

the jog wheel drives CoreAudio volume smoothly — with the native macOS overlay and an in-app sensitivity slider.

hold behaviors

tap, repeat-while-held, hold-key-down, or tap/long-press with two actions on one control.

wireless

standard bluetooth-le midi, paired from inside the app. cable stays in the bag.

arcade mode

flip one switch and your field recorder is a game controller. seriously. see below.

03arcade

the world's most over-engineered game controller.

falling blocks, played on a $1,499 tape recorder. the wheel rotates, the transport keys move, the rocker slams pieces down. more games are coming — this hardware is too good to only do work.

wheelrotate rec · stopmove playsoft drop rocker ▲hard drop memopause modereset
arcade mode: falling blocks driven by the TP-7

04no manual needed

it meets you at the door.

  • nothing connected? a welcome screen shows exactly what to do — including the TP-7's usb-midi + control-mode trap, so you never stare at a silent device.
  • device appears → t-switcher selects it, loads your profiles, and lights up the on-screen hardware as you touch the real thing.
  • window closed? it folds into the menu bar and keeps working. open it again and it's a regular mac app, dock icon and all.
the welcome screen while no device is connected
t-switcher app icon

get the beta.

t-switcher is in private beta while the paint dries. want in? one email, no newsletter.

request the beta →