Yamaha MONTAGE M6 Operation Manual page 303

Each-on Resets the oscillation of the LFO every
time a key is pressed and starts the
waveform at the phase specified by the
Phase parameter.
1st-on Resets the oscillation of the LFO every
time a key is pressed and starts the
waveform at the phase specified by the
Phase parameter.
When a second note is played while the
first note is held, playback will not be
reset.
Loop (LFO Loop Switch)
Sets the LFO Wave to loop (repeat) playback or one-shot playback.
Settings: Off, On
Phase (LFO Phase)
You can set the initial phase for the time LFO Wave is reset.
Settings: 0°, 90°, 120°, 180°, 240°, 270°
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