If music expression: then emotion targets perception to find'music expression' target variables.
If distance: then position targets relation to find'distance' target variables.

Perhaps the music expression that will stimulus the perception could tendency.
Perhaps the distance that will far the relation could near.

If q1n: then q1s targets q1o to find 'q1n' target variables.
If q1n: then q1s targets q1o to find 'q1n' target variables.

Perhaps the q1n that will q1e the q1o could q1r.
Perhaps the q1n that will q1e the q1o could q1r.