Programming the Roland TB-303

track play
when the 303 is slaved to a master (eg the TR-606), the RUN/STOP key is disabled on the 303. please use the RUN/STOP key on the master.

TRACK PLAY

functional buttons during STOP (the greyed out buttons do not respond):
STOP	track	-	jump to Bar nr.1	:	press "BAR RESET"		shortcut for Bar 1
		-	show current Bar nr.	:	hold BAR		led shows the current Bar number (see the "led flash" coding convention below)
		-	show D.C. location	:	hold "BAR" + press D.C.		led shows the Bar number
		-	show location	:	hold "BAR" + press		led shows the Bar number
		-	jump to Bar nr.	:	hold "BAR" + press Bar      number [1..200], release BAR		the order of pressing the buttons: 131 => press 100, press 3, press 1 (100 & 3 lights, 1 flashes). 101 => press 100, press 1 (100 lights, 1 flashes). 110 => press 100, press 1, press 0 (100 & 1 lights, 0 flashes). 111 => press 100, press 1, press 1 (100 lights, 1 lights & flashes). 55 => press 5, press 5 (5 lights & flashes). 10 => press 1, press 0 (1 lights, 0 flashes).
		-	jump to next Bar	:	press "WRITE/NEXT"		- "WRITE/NEXT" will proceed beyond D.C.
	pattern	-	show PATTERN nr.	:	(none)		led shows PATTERN NUMBER [1..8] A,B
		-	show shift info	:	hold "PITCH MODE"		led shows PATTERN shift [C..C']
the Track loops from Bar 1 to the Bar containing the D.C. press "D.S." anywhere during Track Play mode and the song jumps to Bar 2 TRACK 1 : Bar 1 Bar 2 Bar 3 Bar 4 Bar 5 Bar 6 ..... Bar 64     PATTERN [A1] PATTERN [A1] + shift F PATTERN [A1] + shift G PATTERN [A2] PATTERN [??] PATTERN [??] ..... PATTERN [??] D.C. pointer :       D.C.         please take care of a thorough administration on paper on beforehand or afterwards. else you will lose track of the Bars.   functional buttons during RUN (actually only PITCH MODE, BAR and D.S.!):
RUN	track	-	starts playing				play the Bar the pointer is at. (see the jumping possibilities during STOP)
		-	show Bar nr.	:	hold BAR		led shows the current Bar number (see the "led flash" coding convention)
		-	chain tracks	:	turn TRACK SELECTOR to    another Track number    during RUN		the track will keep playing until D.C. is reached and then seamlessly plays the current selected Track number starting from Bar 1. caution: pressing "D.S." gives erratic behavior.
	bar	-	jump to		press "D.S."		jumps to the Bar after finishing the current Bar
	pattern	-	show PATTERN nr.	:	(none)		led shows PATTERN NUMBER [1..8] A,B
		-	show shift info	:	hold "PITCH MODE"		led shows PATTERN shift [C..C']