Yamaha Portatone PSR-74 Manuel du propriétaire - Page 10

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Yamaha Portatone PSR-74 Manuel du propriétaire

Using the Auto Accompaniment

Function/Multi Fingering
The Auto Accompaniment function automatically generates
bass and chord accompaniment for you to play along with,
by using Multi Fingering operation. You can change the
chords of the accompaniment by playing keys in the AUTO
ACCOMPANIMENT SECTION of the keyboard using either
the "Single Finger" or "Fingered" method. With Single
Finger you can simply play a one-, two- or three-finger
chord indication (see Single Finger Chords below). The
Fingered technique is that of conventionally playing all the
notes of the chord. Whichever method you use, the
PortaTone "understands" what chord you indicate and then
automatically generates the accompaniment.
NOTE
Chords played in the AUTO ACCOMPANIMENT SECTION of the
keyboard are also detected and played when the accompaniment
is stopped (Stopped Accompaniment function). In this condition,
the Voices used for the bass and chords are automatically
selected.
NOTE
To use the Minus One function with one of the Styles, press the
MINUS ONE button. (The LED next to the button lights.) Minus One
cancels all chord accompaniment, leaving only the bass and basic
rhythm of the Style.
Setting Auto Accompaniment to Single
Finger or Fingered
Though detection of the Single Finger and Fingered
methods is automatic, you can set Auto
Accompaniment to function exclusively in either the
Single Finger or Fingered mode.
To set Auto Accompaniment to Single Finger, turn the
power off, then hold down the "–" button on the
Numeric Keypad and simultaneously turn the power
on. "SF" (Single Finger) briefly appears in the MULTI
DISPLAY.
NOTE
In Single Finger, the AUTO ACCOMPANIMENT SECTION is set
between the C1 key (the lowest key) and the C 2 key.
To set Auto Accompaniment to Fingered, follow the
same steps, holding down the "+" button instead.
"F" (Fingered) briefly appears in the MULTI DISPLAY.
To switch back to Multi Fingering operation, simply
turn the power off and on again.

Single Finger Chords

Chords that can be produced in Single Finger
operation are major, minor, seventh and minor
seventh. The illustration below shows how to produce
the four chord types. (The key of C is used here as an
example; other keys follow the same rules. For
example, B 7 is played as B and A.)
Press the root note of the chord.
Press the root note together with
any white key to the left of it.
Press the root note together with
any black key to the left of it.
Press the root note together with
any white and black key to the
left of it (three keys altogether).
10
C
C7
Cm
Cm7