Commodore Plus 4 - Page 114

INTRODUCTION
VOLUME
COMMAND
Here is a short program to make music on your Plus/4. Type in the pro
gram exactly as it appears, and remember to press RETURN at the
end of each line. When the program is typed in, type RUN and then
press RETURN When the program asks you to enter a number,
type any number from 0 to 1023 and press RETURN To stop the
program, enter a zero as your value. —-
10 VOL 8
20 DO
30 INPUT X
35EFX -1023ORX-- 0 THEN PRINT "0 TO 1023, PLEASE": GOTO 30 —
40 SOUND 1,X, 10
50 LOOP UNTIL X=0
Press the RUN/STOP key to stop the program
Here's how to play a single note on your Plus/4. Type NEW and press
return to clear the Plus/4's memory. ^
First Type NEW and press RETURN
Type VOL 8 and press RETURN
Second- Type SOUND 1,266,60 and press RETURN
You should hear a note play for about a second and then stop If you
don't hear anything, turn up the volume of your television or monitor
and try it again.
These two steps are the only commands that you need to know to play
music on your Plus/4. Lets look at what these two commands do
THE The VOL command controls the VOLume of the noies that the Plus/4
plays. Think of the first three letters of the word "volume" to remember
the VOL command. The number that comes after VOL is the setting
for the volume. Think of the VOL command as a volume knob on the
Pi us; 4 When the knob points to zero, the volume is off and you won't i^J
hear anything. When the knob is set at 8. the volurre is turned up all
the way, and your Plus'4 plays as loud as it can.
Try the first example again and use a different number after the VOL
command. The smaller the number, the softer the note is played.
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