Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Keywords
PLAY Function
PLAY (num ber)
Returns the number of notes currently in the background music
queue.
Number is a dummy argument when SOUND is OFF. If you exe-
cute a SOUND
ON, then number may be one of the following:
0
1
2
returns the number of notes left to play on voice
channel 0.
returns the number of notes left to play on voice
channel
1.
returns the number of notes left to play on voice
channel 2.
If you specify a number other than 0-2, BASIC assumes 0.
The PLAY function returns a
0 when the program is running in
music foreground mode.
See also SOUND
Sample Program
10 PLAY "ME ABCDEFG"
20 IF PLAY (0) = 4 GOTO 40
30 GOTO 20
40 PLAY "GFEDCBA"
Line 10 sends notes to the music buffer. When the number of
notes is less than 4. Line 40 sends more notes to the buffer.
264

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200