MIDI TEST BoX ? MIDI Monitor / Analyser ? coreMIDI compatible ? ?? MIDI Timecode reader ?? ??? MIDI Data Logger / Log ALL connected devices ??? MIDI TEST BoX is an essential App when using MIDI, check connectivity and find out what's working MTBX is a great tool for logging MIDI data, formats MIDI messages, or shows RAW (Hexadecimal) format ??designed to give feedback in real time, ??simple setup, ready to use when you need it ? keyboard players will find it invaluable ??very useful for professional musicians, ??sound engineers, ??hardware & software developers ??MTC Quarter Frame messages decoded