It can be useful in a music studio or on stage to modify MIDI messages in real-time.

Right now it comes with the following tools:

• Midi In - connects a MIDI input to the pipe
• Midi Out - connects a MIDI output to the pipe
• AList - outputs messages to the screen
• Message Converter - converts messages from one type to an other
• Delay - delays the time for when the message is scheduled
• Transpose - transposes note messages up or down
• Message Filter - filters by messages
• Channel Filter - filters by channel
• Channel Router - routes channels
• Keyboard Split - moves note on/off messages above/below a split point to a different channel
• Randomizer - randomly changes any parameter value(s) of any channel message(s)
• Keyboard - play a on screen keyboard with your mouse or keys; will display arriving messages too
• MicroTuner - apply different scales
• Set - set any parameter value(s) of any channel message(s) to any value
• Duration - add a delay between Note On and Note Off messages