Kurzweil Forte Manual page 156

Program Edit Mode
The Arpeggiator Function
Resulting Arpeggiation (When LimitOption is Unipolar)
Shift Limit
Up
6 ST (F#4) C4, D
7 ST (G4) C4, D
8 ST (G 4) C4, D
#
9 ST (A4) C4, D
10 ST (A#4) C4, D
11 ST (B4) C4, D
C4, D
12 ST (C5)
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 first 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). The
Arpeggiator plays C4, then E4. The next note should be G
limit—so the Forte calculates the difference between that G
one semitone. It adds that difference to the original starting note (C4) and plays that note
next—C
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 difference 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.
7-60
Down
4, F 4, D 4, C4
# # #
4, F 4, E4, C 4,
# # #
4, F 4, F4, D4,
# #
4, F 4, A4 F 4, D 4, C4,
# # # #
4, F 4, A4, G4, E4, C
# #
4, F 4, A4, G 4, F4, D4,
# # #
4, F 4, A4, A4, F 4, D
# # #
C4,
4. The next note (F4) is within the shift limit, but the next note (A4) isn't, so it gets
#
Comment
Up
Same notes play in both directions when Shift
D#4, ...
Limit is a multiple of Shift Amount
Last upward note before shift limit is F#4, next
upward note would be A4, which is 2 ST from
D 4, ...
#
shift limit (G4); therefore first downward note is
E4 (2 ST below last upward note)
A4 is 1 ST from shift limit, therefore first
D 4, ... downward note is F4 (1 ST lower than last
#
upward note)
D#4, ... All symmetrical again; now A4 is within shift limit
Next upward note would be C5, which is 2 ST
4, D 4, ...
# #
from shift limit
D 4, ... C5 is 1 ST from shift limit
#
4,
#
D#4, ... Symmetrical again, including C5
4, but that's above the shift
#
4 and the shift limit (G4):
#