Latch Mode (Latchmode) - Kurzweil ExpressionMate User Manual

The Arpeggiator
Arpeggiator parameters

Latch Mode (LatchMode)

Latch Mode tells the Arpeggiator which of notes that you play
should arpeggiate.
There are two main features of each Latch Mode. The Þrst is
whether or not it uses controller #49. Some Latch Modes will start
arpeggiating as soon as you press the keys, while others will only
start arpeggiating when you send controller #49 (the Latch
controller) with an On value, and then will stop arpeggiating if
you turn that controller Off. You can then assign controller 49 to a
switch pedal or button in a Setup to Latch and Unlatch notes for
the arpeggiator. (Most of the Factory Setups have Pedal 2 and
SW2 assigned to controller 49. In addition, MAP1 remaps
incoming sustain messages to latch, so you can use the sustain
pedal on your keyboard to latch.)
The second main feature is whether or not the arpeggiator will
resync the clock when you Þrst strike a key. If the Latch Mode
does resync the clock, then the arpeggiating will start the
moment you strike a key and any subsequent keys will be
arpeggiated in time with the clock. But once all keys are let up (or
the latch controller is turned off), then the clock wonÕt start again
until the next key is pressed. But if the Latch Mode does NOT
resync the clock, then the clock begins when you select the Setup
and is always running whether or not you are playing any keys.
Therefore, if you strike the key between the clock pulses, the
ExpressionMate will wait until the next clock pulse to start
arpeggiating the note. This allows you to play the keys less
accurately but still have the notes triggered exactly in time.
One important thing to note: If you have the Arp Clock
parameter in the Global Parameters menu set to an external
clock, the all Latch Mode parameters will sync to that clock and
will therefore the modes which normally resync on key start will
NOT resync.
It is possible to Latch up to 16 notes. Once you start arpeggiating,
each note you play is added to an internal list which the
ExpressionMate remembers. In some latch modes, they will be
removed from the list when you let go of the key, and in others,
they will remain part of the list as long as the latch controller is
turned On. If you play more than 16 notes, any extra notes will
simply be ignored. If you press the same key more than once,
each key press is remembered as a separate event in the list and
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