Support & Docs

Press the red dot to start, press it again to stop. That's the whole control, and it's in three places:

All three are the same recorder, so a take started in one appears in the others. While it's running you get the elapsed time and a pause button; pausing and resuming keeps it as one take.

A marker is a bookmark on a moment in the video. While a video is connected, press M or the + button in the Markers header and Tempo Kit saves the exact timestamp; add a note to it any time. If an A-B loop is armed when you mark, the marker also keeps that loop range and speed, so tapping it later drops you straight back into that passage at that tempo.

Markers appear as ticks on the progress bar. Click a tick to see its note and jump to it, or drag it to move the marker. In the list you can edit the time and note, search once you have a few, and cycle the sort between earliest, latest, and recently edited. The loop toggle in the header shows or hides loop ranges, and includes your saved A-B loops in the same time-sorted list.

Markers are saved per video rather than per preset, so they appear under every preset for that video and survive deleting the preset. They are included in your practice journal export.

YouTube and Bilibili are the built-in, tested sources. For your own audio or video files, open the Practice Player. Other standard web players may work when the site allows browser extension control.

Beyond those, the "Using Tab Capture" button on the Videos page connects the practice tools to almost any music or video site using tab capture.

Chrome requires one click on the extension itself before it can capture a tab's audio. If you see "Chrome needs one click: click the TempoKit icon in the toolbar while on this tab", do exactly that: click the TempoKit icon in your browser toolbar while the music tab is active, then move the pitch slider again. This sticks until you navigate to a different website.

If speed controls stay greyed out on a newly connected site, reload that tab once. The site's player needs a fresh page load before it can be controlled.

Detect BPM at normal playback first: 1× speed and 0 transpose. Speed changes how fast the beats arrive, and transpose can affect the audio path used for analysis.

Tip: detect first, set the metronome, then add your speed and transpose for practice.

Your current note saves automatically as you type, so it’s never lost — even if you close the card or the side panel.

When a preset is loaded, the note card shows an Update (checkmark) button that writes just the note back to that preset in one tap. No need to reopen the full save dialog. With nothing loaded, the same button opens the Save dialog so you can name a new preset.

To keep a note attached to a specific setup, save a preset. The note is stored as part of that preset, alongside its BPM, time signature, and video settings, and it comes back when you load the preset later.

You can turn all single-key shortcuts on or off in Settings → Keyboard Shortcuts.

Two things have to be true: Chrome is open at the reminder time, and your operating system lets Chrome show notifications. Run through these:

The chime comes from your operating system, not from Tempo Kit, so the reminder can appear perfectly while the sound is switched off somewhere else. Check these in order:

If the banner arrives silently after all of that, your browser is choosing not to play a sound for extension notifications, which some browser and macOS combinations do. The reminder itself is still working. For a nudge you'll definitely hear, use Add to calendar under the reminder: your calendar app rings on its own terms, including on your phone.