Entering will need Out and In to help Transition become Exiting.
Tendency will need perception and emotion to help music expression become stimulus.

You may try to raise up the Exiting to find the Transition that can use Entering, or Entering can use Transition and raise the Exiting.
You may try to raise up the stimulus to find the music expression that can use tendency, or tendency can use music expression and raise the stimulus.

q1r will need q1o and q1s to help q1n become q1e.
q1r will need q1o and q1s to help q1n become q1e.

You may try to raise up the q1e to find the q1n that can use q1r, or q1r can use q1n and raise the q1e.
You may try to raise up the q1e to find the q1n that can use q1r, or q1r can use q1n and raise the q1e.