Thank you! The bass changing tempo when the enemies detect you was a random thing we decided to add. We're glad that you liked it.
About the enemies chasing you, if you get far enough of their sight (that is, this area)
They will go to the last position they saw you, and if 5 seconds passes after they lost you, they will return to roam around the level. They are faster than your walking speed, but running will get them off you.
Cheers!