Roland S-1 Owner's Manual page 21

Value Explanation
GATE
When in POLY mode, if you've selected a mode besides "PoLy", the envelope goes to its attack phase each time you play
a keyboard pad (completely taking your finger off a pad and then playing the next pad).
If you want to make tonal or time-based changes to each note, you must play in a non-legato style.
GAtE
If "PoLy" is selected while the unit is in POLY mode, time-based changes are applied to the volume or tonal quality of
each note you play, regardless of whether you play in a legato or non-legato style.
GATE+TRIG
If you play a keyboard pad while holding down a different keyboard pad, the envelope is retriggered for the new note
you played.
In other words, this lets you make tonal or time-based changes to each note you play, regardless of whether you play in a
legato or non-legato style.
triG
When "Nono", "Uni", or "Chd" are selected in POLY mode
If this unit is in POLY mode and you select "Nono", "Uni", "Chd" for inputting single notes, the unit behaves as shown below
when you input more than one note.
When ENV TRG is LFO
or GATE
When ENV TRG is
GATE+TRIG
You can use the Note Priority setting ("n. P ri" in the menu) to select between giving priority to
either the last note (LASt) or the lowest note (Loľ) that you play.
The unit gives priority to the last note you played, meaning that whichever keyboard pad you
played last is always given priority.
Creating sounds
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