Tandy 1000 Basic Reference Manual page 263

Chapter 10 I
BASIC
Ke-ywords
PLAY
Statement
PLAY string [,[string1 [,string11
Plays the musical notes specified by
string. PLAY
supports 3
separate strings
to
allow independent control of each of 3 voices.
String
is a string expression consisting of 1 or more single-char-
acter music commands.
String
must be enclosed in quotation
marks.
The single character music commands are:
A - G
plays notes A through G of one musical scale.
You may include a n optional number sign
(#)
or
plus sign
( + )
to indicate a sharp note or a minus
sign
(-)
t o indicate a flat note. You may only
specify sharp or flat notes that correspond to the
black keys on a piano. The letters A,
C, D, F,
and
G
may be followed by a plus because they
are followed by black keys on a piano. The letters
A, B, D, E, and G may be followed by minus be-
cause they a r e preceded by black keys on a
piano.
sets the duration of the notes that follow. n may
be a value in the range 1 to 64. Here are a few of
the more common lengths:
Ln
1
indicates a whole note.
2 indicates a half note.
4 indicates
a
quarter note.
8 indicates a n eighth note.
16
indicates a sixteenth note.
If you want to change the duration for only 1
note, place
n
immediately after the note,
omit-
ting the L. For example, A16 is equivalent t o
L16A.
sets the current octave. There are
7 octaves, 0
through 6. Each octave starts with C
and ends
with B. Octave 3 starts with middle C. If
you
omit n, BASIC assumes Octave 4.
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