Just to clarify the difference between Exporting the State with Saving the Chord Set.
Exporting the State
outputs an XML file that contains all the settings that you have set up for that instance of Scaler, including any performances that you have selected either as a global setting or in the Performance Playback settings on the Edit page.
Saving the Chord Set
simply saves the pattern(s) of blocks. It does not save any other settings, so any Performance settings will not be saved.
But if Save Full Session is selected when Saving
then Performances are saved.
For more about Saving Chord Sets see Saving Chord Sets in 2.7