Remote interface to K2500/K2600
MIDI Companion (formerly Kurzweil Companion) allows you to control your K2500/K2600/K2661 from your Macintosh. This both saves wear and tear on the K2500/K2600 buttons (which are known to be sensitive) and it allows you to work more efficiently.
Take the simplest task on your Kurzweil. You've just created a new program, or layed down the first track in a sequence. The K2500/K2600 wants a name for this new object, and you sit there for 5 minutes spinning the data wheel or pecking at the keypad to enter "Rad Piano" or "Techno Song".