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PC3A7
Руководство по эксплуатации Страница: 174

Kurzweil PC3A7 Руководство по эксплуатации онлайн [174/423] 777180

Kurzweil PC3A7 Руководство по эксплуатации онлайн [174/423] 777180

7-48

Setup Mode

The Ribbon Conguration (RIBCFG) Page

The Arpeggiator can be a lot of fun, even if you don’t always understand exactly what it’s doing.

Keep in mind that the stranger the algorithm you set up, the more unlikely the notes will stay

close to one key, so if you want to create something that’s going to sound at all diatonic, keep it

simple.

Shift Pattern (ShiftPatt)

ShiftPatt engages a step sequencer for arpeggiator note patterns. The inputted note number of

each played key is shifted according to a sequenced pattern, thus “Shift Pattern.” The PC3A has

pre programed shift patterns including many useful chords, intervals, and rhythms. You can also

create your own custom shift patterns (see below for details.) Each pattern can have up to 48

steps, and each step can shift notes by ± 127 half-steps or play nothing. Steps are played back at

the rate set for Beats on the ARPEGGIATOR page. Keep in mind that Shift Patterns are eected

by every parameter on the ARPEGGIATOR page, which can be the cause of unexpected

variation, or a way to add interesting variation to a pattern.

Shift Patterns are most easily used and understood when triggered by only one key at a time.

One way to prevent triggering from multiple keys is to use one of the Latch types 1NoteAuto,

1NoteAutoLow, or 1NoteAutoHi when using a shift pattern (see Latch on page 7-50, below.)

Triggering shift patterns from one key allows the pre programed patterns to sound like what you

would expect from their names. If no other keys are playing, patterns will start over each time a

key is pressed (there are some exceptions to this when using ARPEGGIATOR Latch parameters other

than “Keys,” though a newly triggered pattern will always start at step 1.) When triggering Shift

Patterns from more than one key at a time, each consecutive step of the pattern shifts the note

from a dierent inputted key, the order of which is decided by the order parameter on the

ARPEGGIATOR page. This means that each key will not be shifted by every step of the pattern,

causing you to only hear part of the pattern from each key, often making the pattern

unrecognizable. Though triggering a Shift pattern from multiple keys can be used creatively, it

can also make it hard to predict what the output will be.

You can edit the included patterns by pressing “Edit” with a pattern highlighted in the ShiftPatt

eld (see edit screen below.) The top line of the “EditShiftPatt” page shows the full name for a

pattern whose name does not t on the ARPEGGIATOR page. This page also displays the

pattern’s total number of steps, as well as pattern direction. Pressing Step- removes the last step

in the list, pressing Step+ inserts a new note step at the end of the list (the pattern editor

remembers the values of removed steps until you save or exit.) Use the cursor to move between

pattern steps, use the alpha wheel, alphanumeric pad, or plus/minus buttons to enter the note

shift amount for each step. Press More to see a second page for patterns with more than 24 steps.

You can insert a step with a value of “none” by entering -127 and then shifting down one more

step. A step with the value “none” causes the arpeggiator to play nothing for that step, allowing

you to create rhythmic patterns by using “none” to leave spaces. When the arpeggiator

determines the range of pattern notes played with the Limit parameter (see below,) steps with a

value of “none” will be calculated as a step value of 0.

Use the chan up/down buttons to change the direction in which pattern steps are played

(indicated by Up, Down, or Flat on the right of the top line.) With pattern direction set to Up, the

pattern plays as expected, starting at step one and moving up through each step towards step 48.

With pattern direction set to Down, the pattern starts at step one, but then moves to the last step

and continues to move backwards through the steps down towards step 1. Additionally, patterns

set to Down base all notes after step one in the octave below the rst note played. These settings

are most useful for arpeggiating chord patterns upwards or downwards from the root note.

Patterns set to Flat will not repeat in other octaves like those set to Up or Down (depending on

the Limit parameter.) Patterns set to Flat play without transposition, the Limit parameter will

not transpose the pattern but it can still restrict note range.

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