A time machine in Logic Pro

A nice moment in Logic Pro, a music app. Like with most such apps, you can press R to record you playing an instrument. However, if you forgot to play record, or were just goofing around and stumbled upon something wonderful, you can press ⇧R and the recording will appear anyway, as if you had a time machine. This is a quick TikTok video showing it in action: The feature is called Flashback Capture. Of course, just like with undo send, this is no magic. The app is always recording the events quietly, and then offers you to make them “real” if you want. I dug around and I found a support document that offers a rare view into the mechanics of this feature, which are slightly more sophisticated than I imagined: When playback is stopped, Flashback Capture creates a separate region containing all the MIDI events received since the last playback. However, after a pause of 20 seconds between incoming MIDI events, those initial MIDI events before the pause are discarded. If when playback is…