Download of 02. MIDITrail for macOS 1.2.1 (MIDITrail-Ver.1.2.1-MacOSX.zip: 3,207,100 bytes) will begin shortly. If not so, click MIDITrail-Ver.1.2.1-MacOSX.zip.
The MIDITrail project website has moved.(2023/8/23)
https://www.yknk.org/miditrail/
"MIDITrail" is a MIDI player which provides 3D visualization of MIDI datasets. You can enjoy not only listening but also viewing. MIDITrail supports SMF format 0/1, and multiple MIDI ports. MIDITrail is available for Windows, macOS and iOS.