the "Interactive (use input)" butto
is checked on the lower "Settings" dialo
(accessed by typing cmd-option space, see Fig.24 in §5.2), BP2 keeps
listening to messages received on its MIDI input and may react to them if
instructed to do so. It keeps listening even whe it is not doing anything
particular such as improvizing music or running a script.
on how to react are stored in a "-in.<name
file displayed in the "Interaction" windo
The format of these instructions is part of BP2's script language, therefore
it is convenient to say that the "Interaction" window contains a script.
BP2 produces MIDI messages, some of which may be used to trigger processes on
external devices (including copies of BP2). For instance, BP2 is able to start
process when prompted by the appropriate MIDI message. This is possible thanks
to the instruction
On «note» channel «1..16» do «script instruction»
will execute the specified script instruction at the time a NoteOn message is
received, including running another script if «script instruction» is:
this instruction will only work if BP2 finds the specified script (or its
alias), either in the start-up directory (the one in which you did a
double-click to start BP2), or in the latest directory in which a script was
found during the current session. Otherwise, BP2 will prompt the user to
locate the script.