pxtone collab is based off pxtone collage, a music editor developed by Pixel, the creator of Cave Story and Kero Blaster. As such some features will be familiar:

• Simple note and parameter input (pan, volume, portamento, fine-tuning, effects)
• Hassle-free import of samples (ogg, wav) and custom instruments (ogg, wav, ptvoice, ptnoise)
• Song parameter settings (tempo, time signature)

In addition, ptcollab supports:

• Collaborative editing: host a server and have others connect and work with you!
• Session recording: save a frame-by-frame recording of a session and play it back later!
• MIDI input: Record notes either live while the song is playing, or using keyboard controls to step through time.

Check out the landing page for more info about pxtone collab, including downloads, guides, further links, and thank yous.

The releases page has executables you can download and just run!

If you're building from source, it should work with a Qt5.15 install, but does require ogg/vorbis, rtmidi, and C 17.

On Mac, you may need to install a later version of clang (e.g., through brew install llvm).

If you have these dependencies , running qmake and then make should build an executable for you.