The following opcodes can be used to design instruments that work interchangably for real-time MIDI and score events:
| ![[Note]](images/note.png)  | Adapting a score-activated Csound instrument. | 
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| To adapt an ordinary Csound instrument designed for score activation for score/MIDI interoperability: 
 
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| ![[Note]](images/note.png)  | MIDI Realtime Input/Ouput command line options | 
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| New MIDI I/O flags in Csound 5.02, can replace most uses of these MIDI interop opcodes, and make usage easier. |