PORTATONE PSR-280, Owner'S Manual

Page: 43 / 92

Auto Accompaniment
43
Chord Name/[Abbreviation] Normal Voicing Chord (C) Display
Major [M] 1 - 3 - 5 C C
Add ninth [(9)] 1 - 2 - 3 - 5 C(9) C(9)
Sixth [6] 1 - (3) - 5 - 6 C6 C6
Sixth ninth [6(9)] 1 - 2 - 3 - (5) - 6 C6(9) C6(9)
Major seventh [M7] 1 - 3 - (5) - 7 or
1 - (3) - 5 - 7 CM7 CM7
Major seventh ninth [M7(9)] 1 - 2 - 3 - (5) - 7 CM7(9) CM7(9)
Major seventh add sharp eleventh [M7(
#
11)] 1 - (2) - 3 -
#
4 - 5 - 7 or
1 - 2 - 3 -
#
4 - (5) - 7
CM7(
#
11) CM7(
#
11)
Flatted fifth [(
b
5)] 1 - 3 -
b
5 C(
b
5) C
b
5
Major seventh flatted fifth [M7
b
5] 1 - 3 -
b
5 - 7 CM7
b
5 CM7
b
5
Suspended fourth [sus4] 1 - 4 - 5 Csus4 Csus4
Augmented [aug] 1 - 3 -
#
5 Caug Caug
Major seventh augmented [M7aug] 1 - (3) -
#
5 - 7 CM7aug CM7aug
Minor [m] 1 -
b
3 - 5 Cm Cm
Minor add ninth [m(9)] 1 - 2 -
b
3 - 5 Cm(9) Cm(9)
Minor sixth [m6] 1 -
b
3 - 5 - 6 Cm6 Cm6
Minor seventh [m7] 1 - b 3 - (5) - b 7 Cm7 Cm7
Minor seventh ninth [m7(9)] 1 - 2 -
b
3 - (5) -
b
7 Cm7(9) Cm7(9)
Minor seventh add eleventh [m7(11)] 1 - (2) -
b
3 - 4 - 5 - (
b
7) Cm7(11) Cm7(11)
Minor major seventh [mM7] 1 -
b
3 - (5) - 7 CmM7 CmM7
Minor major seventh ninth [mM7(9)] 1 - 2 -
b
3 - (5) - 7 CmM7(9) CmM7(9)
Minor seventh flatted fifth [m7
b
5] 1 -
b
3 -
b
5 -
b
7 Cm7
b
5 Cm7
b
5
Minor major seventh flatted fifth [mM7 b 5] 1 - b 3 - b 5 - 7 CmM7 b 5 CmM7 b 5
Diminished [dim] 1 -
b
3 -
b
5 Cdim Cdim
Diminished seventh [dim7] 1 -
b
3 -
b
5 - 6 Cdim7 Cdim7
Seventh [7] 1 - 3 - (5) -
b
7 or
1 - (3) - 5 -
b
7
C7 C7
Seventh flatted ninth [7(
b
9)] 1 -
b
2 - 3 - (5) -
b
7 C7(
b
9) C7(
b
9)
Seventh add flatted thirteenth [7(
b
13)] 1 - 3 - 5 -
b
6 -
b
7 C7(
b
13) C7(
b
13)
Seventh ninth [7(9)] 1 - 2 - 3 - (5) -
b
7 C7(9) C7(9)
Seventh add sharp eleventh [7(
#
11)] 1 - (2) - 3 -
#
4 - 5 -
b
7 or
1 - 2 - 3 -
#
4 - (5) -
b
7
C7(
#
11) C7(
#
11)
Seventh add thirteenth [7(13)] 1 - 3 - (5) - 6 -
b
7 C7(13) C7(13)
Seventh sharp ninth [7(
#
9)] 1 -
#
2 - 3 - (5) -
b
7 C7(
#
9) C7(
#
9)
Seventh flatted fifth [7 b 5] 1 - 3 - b 5 - b 7 C7 b 5 C7 b 5
Seventh augmented [7aug] 1 - 3 -
#
5 -
b
7 C7aug C7aug
Seventh suspended fourth [7sus4] 1 - 4 - (5) -
b
7 C7sus4 C7sus4
One plus two plus five [1+2+5] 1 - 2 - 5 C1+2+5 C
• Notes in parentheses can be
omitted.
• Playing two same root keys in the
adjacent octaves produces
accompaniment based only on
the root.
• A perfect fifth (1 + 5) produces
accompaniment based only on
the root and fifth which can be
used with both major and minor
chords.
• The chord fingerings listed are all
in “root” position, but other inver-
sions can be used — with the fol-
lowing exceptions:
m7, m7 b 5, 6, m6, sus4, aug,
dim7, 7
b
5, 6(9), 1+2+5.
• Inversion of the 7sus4 and
m7(11) chords are not recog-
nized if the notes shown in
parentheses are omitted.
• The auto accompaniment will
sometimes not change when
related chords are played in
sequence (e.g. some minor
chords followed by the minor sev-
enth).
• Two-note fingerings will produce
a chord based on the previously
played chord.