Wazware MIDI Software
Wazware MIDI Software
Wazware MIDI Software page contains lots of great tools for working with MIDI devices including the Lexicon MPX 1, the Lexicon PCM 90 and the Lexicon LXP-1/Reflex.  He's also got a MIDI Monitor app that will also save and send SysEx (dumps, etc..).

Also check out the Wazware Home page for other cool applications.

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