32x8 matrix ws2812 spectrum reversed

I drive a 32 x 8 ( columns 32, rows 8 ) led matrix serpent wiring using a teensy 3.x with teensy audio adapter for an audio spectrum display …

I m using the example XYMatrix but the spectrum output is reverse … low audio freq on the right and high audio freq on the left …

How do I invert the setting ?

Thanks

If this is a project you are working on source from somewhere let us have the source link so we can better understand the project.

I fixed by flipping the 0 to 7 fft levels it but here is the codes anyway …

https://pastebin.com/j0eRrMaK

Video here:-

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