ESC calibration missing step

I should have known why I couldn’t get my esc to calibrate have done it a million times but there is one step missing in the docs for plane and that is once safety switch is set you need to arm autopilot then throttle to max add power to esc wait for beep beep and lower throttle and wait for tune or whatever your esc may do. Mine is now plying jingle bells haha Santa’s slay will fly with a sick tune!