Yamaha RX21 Owner's Manual page 47

(B) ENTER REST ON SECOND BEAT
as
(7) ENTER SNARE DRUM ON THIRD BEAT
=> ——eg-———
4 Е
(SD dot display)
@ CONTINUE HOLDING TEMPO KEY. PRESS HH CLOSED KEY.
э [cases
(HH CLOSED dot
RELEASE TEMPO KEY m [-——W.———23———4 PRA EAE
(Ò ENTER HH CLOSED ON 4th, 5th, 6th BEAT
(D [SELECT PTN 00 №
Ө, => [BEAT EXCHANGE ?
@ =) | BEAT EXCHANGING !
= | SELECT РТН 00 №