This has been a large topic of discussion online so I want to set the record straight on how this works since I was also stuck on this.
I was successful at discovering how to run the key detection in Traktor Pro 2.6.1.
The detection must be run on a full directory, one directory at a time, and allowed to complete, so be patient.
Since no one seems to have posted detailed instructions (including NI), here is how I succeeded after some research and trial-and-error:
These are the directions for Windows-based PCs but should be similar for the Apple platform
Because this takes time, I proposed you start this and let it run overnight as needed if you have large directories of music
1. – I suggest you enable the Status Bar in the Traktor Preferences window under “Browser Details” and check “ Status Bar/Error Messages” to allow you to monitor the progress of the detection.
2. – Pick any music directory to start.
3. – Right-Click in the title bar for all you tracks in that directory, then enable the “Key” Column.
4. – Click on any track to highlight it, then execute a “Control-A” to select all tracks in that directory. They should all be highlighted now
5. – Right-Click in any track and select “Analyze (Async)”.
6. – In the Analyze window, select Special, Select Key, and then click “OK”.
7. – The detection process will start and you will see the status bar progress for each track until it reaches the last track in the selected directory. DO NOT INTERRUPT THE DETECTION AND LET IT FINISH THAT DIRECTORY.
8- – When the current directory detection is finished, then you can repeat the above process on other directories.
9 – – All the keys will appear in white initially and will only assume their assigned key colors when you sort on the Key column by clicking the Key column header.
10. I also noticed that when you re-start Traktor Pro 2.6.1, the keys are in white again and you must sort the keys again to have them assume their assigned key colors.
Hope that helps many of you with this puzzle and please share this information.
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