macOS won't open DropWave

DropWave isn't notarised yet, so the first launch is blocked once. Open System Settings → Privacy & Security, scroll down to the message about DropWave, and click Open Anyway. After that it opens normally, updates included.

If macOS says DropWave is damaged, the download was quarantined without the usual prompt. In Terminal, run:

xattr -dr com.apple.quarantine /Applications/DropWave.app

Then open it again.

A file won't open

Check it plays in Finder (press Space on it). If Quick Look can't play it, nothing can decode it.
DRM-protected files can't be decoded by anything.
Very short files, under about half a second, have nothing to measure.

The key looks wrong

Look at the confidence. Low confidence on a drum loop is the honest answer: percussion has no key.
Check the runner-up. If it's the relative key (A minor and C major), both are defensible.
Press Hear key and play along. Your ear is the final judge.
Still wrong? Report it in the Discord with /report and attach the file. Those reports are what the engine is tuned on.

The BPM looks wrong

Half or double? Use Half / As detected / Double; both levels describe the same grid.
Turn on Click on beats. If the click follows the drums, the tempo is right even if it isn't the number you expected.
Set a tempo range in Settings → General if your music lives outside 78–152 BPM, like drum & bass.

Updates don't arrive

Choose DropWave → Check for Updates… to check right away.
On Dev Beta, make sure your code is entered in Settings → Updates.
Updates install when you click Restart in the update bar; until then you keep the version you have.

Space doesn't play

Space plays and pauses unless you are typing in the search field. Click the waveform or press ⌥⌘P.

Anything else

Open a ticket with /ticket in the Discord, or email hello@getdropwave.com.