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PLAY - a device I/O statement that plays music
 
Syntax
  PLAY commandstring
    ■ commandstring is a stringexpression that contains music commands:
──────────────────────────Set Octaves and Play Tones──────────────────────────
 On  Sets current octave (n = 0-6)    │  < or >  Up or down one octave
 Nn  Plays note n (n = 0-84, 0 is a   │  A-G  Plays A, B, ..., G in current
     rest)                            │      octave (+ = sharp, - = flat)
──────────────────────────Set Tone Duration and Tempo─────────────────────────
 Ln  Sets length of a note (L1 is     │  MS  Each note plays 3/4 of length
     whole note, L4 is quarter note,  │  MN  Each note plays 7/8 of length
     etc.)  n = 1-64                  │  ML  Each note plays full length
 Tn  Sets number of quarter notes per │  Pn  Pause for the duration of
     minute (n = 32-255, 120 default  │      n quarternotes (n = 1-64)
────────────────────────────────Set Operation─────────────────────────────────
 MF  Plays music in foreground        │  MB  Plays music in background
───────────────────────────────Execute Substrings─────────────────────────────
       X + VARPTR$(string-expression)     Executes another command string
 
See Also  ◄SOUND►  ◄BEEP►  ◄ON PLAY(n)►
Other Uses of the PLAY Keyword
  ◄PLAY ON, PLAY OFF, and PLAY STOP► - to enable, disable, or suspend play
                                       event trapping
  ◄PLAY function► - to return the number of notes in the background music
                    queue