Hi Squeak,

I would first go to the chord match screen and see whats there. Manuals are often not very well written.
Try recording a simple phrase and see if it is repeating/looping automatically. Maybe thats there default setting.

If all else fails ask George Kay or call yamaha hotline.

Good luck

Eric
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Genos, PSR-S970, TC Helicon VoiceLive3, Mackie 802-VLZ3 Mixer, 2 Bose L1 Pro16, Electro-Voice ZXA1 Subwoofer