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![](https://forum.audiob.us/uploads/editor/g1/ycnh86zdzur6.jpeg "")
##MIDIspy
MIDISpy[🏪](https://itunes.apple.com/us/app/midispy/id1444652196?mt=8) is is an AUv3 app for [monitoring MIDI](MIDImonitor) within an [AUv3 host](AU_features). It is an AUv3 MIDI effect app. Filters for notes, MIDI clock, sysex, and CC messages.
####Screenshot
![](https://forum.audiob.us/uploads/editor/rp/fg1yrkfetkfr.jpeg "")

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{{tag> au au_midi_fx midi_monitor}}