"Note by note" is the mode with no clock — the exercise waits until you're actually ready.
Waits for your key
The cursor stays put at the current spot until you've actually pressed the required key(s) — there's no metronome beat pushing you along. Your own tempo decides how fast it moves on.
Klavissimo waits until YOU play the key.
Accompaniment in lockstep
If another voice plays along — the other hand in a one-hand exercise, or an ensemble voice such as violin or cello — it waits for your next step too: it moves in lockstep with you, not at its own free tempo. The other hand doesn't play grace notes, trills, mordents, turns or tremolos here; you hear only the main note, and the other hand strikes arpeggios as a plain chord.
Long notes and ties
A long note in the other hand keeps sounding while you play your steps, even across a tie into the next bar. It stops at the step where its note value ends, which for a tied note is the end of the tie. If you play the hand with the tie yourself, strike the note only once: the cursor doesn't wait for a new key press at the end of the tie.
Hand colours on the keyboard
On the on-screen keyboard, your target keys light up in colour — gold, unless you've chosen "Left" in the practice excerpt: then they light up in a second colour. Notes Klavissimo plays for you light up in the same hand colours: they belong to your piece, just to the other hand. Pieces with several parts work differently — during play-through, whatever another part plays lights up muted, so you can tell at a glance which part is yours and what Klavissimo takes over.
Wrong key? Just try again
Press the wrong key and nothing bad happens — the step simply stays where it is, and you try again. Only the right key(s) move you on to the next spot.
End the run or play it again
During the run, "Stop" ends the recording and shows the summary in the same place. "Again" starts from the beginning. "Done" takes you back to where you came from. If there is a next step, "Next exercise" appears there instead: coming from the daily plan, the plan's next slot; otherwise the next exercise of the same module. "Cancel" instead discards the current attempt and returns to the ready player without a result. With "3×" or "Loop", one pass means every spot once: the next pass starts again at the first spot, and the summary lists the values of all finished passes. "Stop" from the second pass on shows the last finished pass; the one you had started doesn't count.
Good to know:
After repeated wrong tries at the same spot, Klavissimo helps out more and more — up to the right key lighting up. How fast that happens is set in the player ⚙ under "Hints" (gentle/medium/strict); in strict mode, the key never lights up on its own.