Yamaha QY-300 Owner's Manual page 68

Patterns — Part 1: Accompaniment Basics
Actually, you can press
the chord type key and
then the root key, the
order doesn't matter.
The "- - -" chord type
marking is a special
"THRU" or "non-ABC"
type that can be used to create
accompaniment patterns without
the harmonic limitations of the
ABC system.
6 0
Chord roots
The chord is actually entered only when the [ENTER] key is pressed. Until
the [ENTER] key is pressed, the newly specified chord root and type will
flash on the display.
The Chord Types
add9 major added ninth.
M major.
M7(9) major seventh ninth.
M7 major seventh.
aug augmented.
6(9) sixth ninth.
6 sixth
7(9) ninth.
7 seventh.
add9 minor added ninth.
m minor
m7(9) minor seventh ninth.
m7 minor seventh.
mM7 minor major seventh.
Chord types Press [ENTER] key
m6 minor sixth.
dim diminished.
7( 5) seventh sharp five.
7( 5) seventh flat five.
7( 9) seventh sharp nine.
7( 9) seventh flat nine.
7( 13) seventh flat thirteen.
7(13) seventh thirteen.
7sus4 seventh suspended four.
sus4 suspended four.
m7(11) minor seven eleven.
7( 11) seventh sharp eleven.
- - - THRU (see "DETAIL" below).