Fast Tune works by observing the rate at which the user is turning the encoder. The timing and tuning rates are set with #define starting around line 64 of the attached files. For me, if the encoding is pulsing faster than once per 100ms, I'm doing a Fast Tune. Slower than that and I'm just tuning around. Read the code in loop() to figure out how to use it. You will need to put both files in your project subdirectory.
