MIDIviaOSC is a simple and free Cocoa application (created using VVMIDI and VVOSC) that will allow you to you send MIDI data to another computer on the internet via OSC.
MIDIviaOSC does two things: · it takew MIDI, convert it into OSC messages which use the MIDI data type, and send these OSC messages somewhere. · if it receives any OSC messages which use the native MIDI-over-OSC data type, it will convert those messages into MIDI messages, and send them to one of the MIDI devices on your system.