Introduction

Most of the time you will perform your MIDI editing graphically in one of the MIDI editors. But there are times when you want more of a “search and replace” function on MIDI data, and that’s where the Logical Editor comes in.

The principle of the Logical Editor is this:

• You set up filter conditions to find certain elements.

  This can be elements of a certain type, with certain attributes or values or on certain positions, in any combination. You can combine any number of filter conditions and make composite conditions using And/Or operators.

• You select the basic function to be performed.

  The options include Transform (changing properties of the found elements), Delete (removing the elements), Insert (adding new elements based on the found positions of other elements) and more.

• You set up a list of actions, which specify exactly what is done.

  This is not necessary for all functions. For example, the Delete function does not require any additional action specifications – it simply removes all found elements. The Transform function on the other hand requires that you specify which properties are changed and in which way (transpose notes by a certain amount, adjust velocity values, etc.).

By combining filter conditions, functions and the specific actions, you can perform very powerful processing.

To master the Logical Editor, you need some knowledge about how MIDI messages are structured. However, the Logical Editor also comes with a rich selection of presets, allowing you to access its processing powers without delving into its more complicated aspects.