I love the feeling of getting locked into the groove of the delay because it adds such a nice rhythm and flow to it. The filter is being controlled by the velocity of the keystrokes making that sweeping effect; this becomes really evident around the 9 min mark. It was recorded all in one shot using four voices layered on top of each other. Thank you all of you for supporting Piano + Sounds! https://www.paypal.com/donate/?hosted_button_id=PVQQXB9N5CCMS