Yamaha CS2x Guide de dépannage télécharger pdf (Page 31)

Sound Rhythm Tricks

Looking at these UpDown Arpeggios may lead you to the conclusion that the chord notes are somehow

“drifting across the beats”. Perhaps you have already come across this phenomenon when working with

other Arpeggiators or testing some of the CS2x factory sounds. It’s true: you can never separate rhythms

and chords when working with the Arpeggiator! Here’s an example.

EXPERIMENT:

Leave the resolution of Performance TP063 set to 1/16 and type “UpOct2”. Now play a C major triad in the basic config-

uration and examine which beats the arpeggiated sounds fall on. After the first cycle, the root note lies somewhere

between the second and third beat, after the second cycle it falls on the fourth and after the third it’s now between the

first and second beats, and so on. If you set the resolution to 1/24 triplet however, the C note will always fall exactly on

each beat.

Let’s look at this from another angle: Trigger the Arpeggiator with a four note chord (use the C major chord with root note

octaves) and you will find that the C note doesn’t fall on the beat anymore. To correct this, choose an even-numbered

resolution (e.g. 1/16 or 1/8). Now everything is back to normal – i.e. the arpeggiated root note falls once again exactly on

the expected beats.

Are you with us so far? We have a little EXPERIMENT that will demonstrate the direct relationship between

the number of chord notes and the chord’s rhythmic resolution. The rule of thumb here is that you should

always choose even numbered chords for even rhythmic resolutions (1/4, 1/8, 1/16 and 1/32) and (say) three

note or five note chords with odd-numbered resolutions (1/6, 1/12, 1/24). That’s the only way to avoid gener-

ating unwanted syncopations with the Arpeggiator.

A special case is the dotted note rhythms (3/8, 3/16 and 3/32). The above rules don’t apply here. These res-

olutions are mostly relevant to odd-numbered beats, such as 3/4, 3/8 or 6/8. You will need to play chords with

an even note number to play back these three-part rhythms correctly.

EXPERIMENT:

Select Performance TP064 with Arpeggio type “UpOct2” and a 3/8 resolution. Now playing a triad will find the root note

on the first beat in the 4th bar, (in other words irregular cycles are generated). A 4-note chord however generates sym-

metrical 4 bar cycles, i.e. the root note is repeated after the first cycle on bar 3, after the second cycle on bar 5 and after

the third cycle on bar 7 etc. - always on the first beat.

Note Example: 1/16

Note Example: 1/24

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 76 77

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Yamaha CS2x Guide de dépannage Page 31