0:00 / 0:00 Thunder Storm St. Augustine Variation 1 $0.99 In cart Not available Out of stock Share Variation 1: Frequency Shifter and a Filter Gate that starts 4' 58'' with EQ. Licensing Terms: http://creativecommons.org/licenses/by/4.0/ Credit: www.refoundsound.com aka JoAnne Maffia