Yamaha DX7 SuperMAX+ User Manual page 18

With each repeat the pitch increases by the value set here. There are two scales.
 Scale 1 is the fractional part .00 to .99 (cents/hundredths of a semitone).
 Scale 2 is the whole number of semitones (0 to 12).
BUTTON 26: Delay Hold
The Delay Hold can be turned ON or OFF. You can clear the notes and start over
by pressing the "Yes/+1" button.
DX7 SuperMAX+
© 2018 MusicTechnologiesGroup.com & MAXsystems
SupMAX Function
DELAY HOLD= OFF
Page 18 of 32 User Guide