learn your
machine, by
doing.
Pick up your device. Ask it anything, follow a hands-on track, or browse straight answers, all anchored to the buttons in front of you.
used by nearly 5,000 musiciansask in any language
K.O. II
the best way to learn your machine.
ask it anything, get a real answer
Ask in plain language and get an answer that's grounded in the official manual, pointed right at the control you need.
Hold sample, then tap a pad to record straight from the line-in.
§ sampling · p.14anchored to the buttons in front of you
Every answer lights up the control on a live diagram of your device.
learn by doing
Hands-on tracks walk you through your first beat, move by move.
always cited
Every claim links back to the page it came from.
go further, unlimited
Unlimited questions, the full mastery curriculum, and the smartest model, all in one subscription.
good to know.
is it free?
Yes. Ask questions every day for free. Pro ($20/mo) lifts the daily limit, unlocks the full mastery curriculum, and uses the smartest model.
which devices are supported?
All nine: the OP–1, OP–1 field, K.O. II (EP–133), EP–1320, EP–40, TP–7, TX–6, and CM–15. Pick yours and everything is anchored to its real controls.
how accurate are the answers?
Every answer is grounded in the official device manual and points at the exact control, with a citation back to the page it came from so you can verify it.
what languages does it work in?
Any. Ask in your own language and you get the answer back in it. The guidance is grounded in the official (English) manuals, but the AI replies in whatever language you write in.
what is mastery?
Hands-on, interactive tracks that teach your device move by move, with the control lit up on a live diagram for every step. The first track is free; the rest come with Pro or a one-time device pack. The KO II curriculum is live now, with more devices coming.
is this affiliated with teenage engineering?
No. teenage manual is an independent project, not affiliated with or endorsed by Teenage Engineering.
can i cancel anytime?
Yes. Pro is month-to-month and you can cancel whenever you like, no questions asked.