User Manual

Program Edit Mode
The Arpeggiator Function
7-60
Shift Limit
Resulting Arpeggiation (When LimitOption is Unipolar)
Comment
Up Down Up
6 ST (F#4) C4, D
#
4, F
#
4, D
#
4, C4 D#4, …
Same notes play in both directions when Shift
Limit is a multiple of Shift Amount
7 ST (G4) C4, D
#
4, F
#
4, E4, C
#
4, D
#
4, …
Last upward note before shift limit is F#4, next
upward note would be A4, which is 2 ST from
shift limit (G4); therefore rst downward note is
E4 (2 ST below last upward note)
8 ST (G
#
4) C4, D
#
4, F
#
4, F4, D4, D
#
4, …
A4 is 1 ST from shift limit, therefore rst
downward note is F4 (1 ST lower than last
upward note)
9 ST (A4) C4, D
#
4, F
#
4, A4 F
#
4, D
#
4, C4, D#4, … All symmetrical again; now A4 is within shift limit
10 ST (A#4) C4, D
#
4, F
#
4, A4, G4, E4, C
#
4, D
#
4, …
Next upward note would be C5, which is 2 ST
from shift limit
11 ST (B4) C4, D
#
4, F
#
4, A4, G
#
4, F4, D4, D
#
4, … C5 is 1 ST from shift limit
12 ST (C5)
C4, D
#
4, F
#
4, A4,
C5,
A4, F
#
4, D
#
4,
C4,
D#4, … Symmetrical again, including C5
Bipolar starts out the same way as Unipolar, but during downward note shifting, it continues
past the original pitch until it hits the shift limit in the opposite direction, where it reverses
again.
Float Res adds a bit of apparent randomness to the process. “Float” means that when the
Arpeggiator reaches the shift limit, it resets—but not to its original pitch as with plain
Reset. Like Unipolar and Bipolar, it looks at the rst note that would exceed the shift limit,
and calculates the interval between that note and the shift limit. It then restarts the cycle of
latched notes, transposing the entire cycle by the interval it just calculated, then shifting each
subsequent cycle by the value of Shift Amount, until it reaches the shift limit again.
Here’s a very simple example. Suppose that the only note in the Arpeggiator cycle isC4,
Shift Amount is4 (a third), and Shift Limit is7 (so notes won’t get shifted above G4). e
Arpeggiator plays C4, then E4. e next note should be G
#
4, but that’s above the shift
limit—so the Forte calculates the dierence between that G
#
4 and the shift limit (G4):
one semitone. It adds that dierence to the original starting note (C4) and plays that note
next—C
#
4. e next note (F4) is within the shift limit, but the next note (A4) isn’t, so it gets
translated into D4—and so on.
Float Uni uses the same concept and applies it to Unipolar mode: when the Arpeggiator
reaches the shift limit, it calculates the dierence between the next note and the limit, and
transposes the next cycle of notes down by that interval, then shifts each subsequent cycle
down until it reaches the original pitch. Float Bip is similar to Float Uni, but the downward
shift limit isn’t the original pitch, it’s the negative of the Shift Limit value.