MIDI Player

LinuxSampler - free, open source pure software audio sampler with professional grade features.

MIDI visualizer provides a nicely animated rendering of MIDI music that's easily configured through a sleek, on-screen settings dialog. It's open source software built with OpenGL in C++ and it works across Mac, Windows and Linux desktops.

Interactive piano-learning web app. Runs in all modern browsers. Plays all MIDI files & supports MIDI devices as input.

MidiCo professional karaoke software for macOS allows you to host and manage a professional karaoke show. It supports all standard karaoke file types as well as HD video formats. You can also create your own karaoke files.

Initially a private app built for fast playback of large MIDI files, UMP offers an easy solution for Black MIDI recordings.