unit music version 1.0

Play music in the background.

1990 J.C. Kessels


This unit gives you music capabilities with a BASIC syntax. The music
will be played in the background, so your program can continue with
other things. The music can also be played in the foreground.

This unit is very easy to use. There are only three procedures and one
function interfaced outwards. All the rest is automatic (installing,
uninstalling, interpreting the music, etc.)!


PlayMusic(string);
          Start playing a string of music in the background. The string
          is a normal character string containing music 'commands' as
          described below. If there is already music playing, then it is
          first shut off. All settings are reset to their default.

PlayMusicForeground(string);
          Start playing a string of music, and wait for it to finish. If
          there is already music playing, then it is first shut off. All
          settings are reset to their default.
          This procedure simply calls the "PlayMusic" procedure, and then
          loops until MusicBusy (described later) is true.

MusicOff;
          Turn music off.

if MusicBusy then ...
          Return TRUE if there is currently music playing.

See at the end of this unit for a small demonstration program.


The music-commands syntax is (BASIC compatible):

[>,<]A..G[#,+,-](n)[.]
          Play not