I've been playing around with the Shade skin and it has changed my understanding of this issue a little.
Obviously all the skins have push buttons for changing the key independent of tempo. The Shade skin also has fine- and coarse-adjust sliders, and right-clicking on coarse adjust resets the key of the track. This works without the track having a key set.
If the track does have a key set, then this right-click action does the same thing as right-clicking the Sync Key button.
I've been playing around with the Shade skin and it has changed my understanding of this issue a little.
Obviously all the skins have push buttons for changing the key independent of tempo. The Shade skin also has fine- and coarse-adjust sliders, and right-clicking on coarse adjust resets the key of the track. This works without the track having a key set.
If the track does have a key set, then this right-click action does the same thing as right-clicking the Sync Key button.