Captain Chords - Write chord progressions in your favorite DAW
Ring4 Meeting - Dead simple video conferencing - free, in browser
RapidComposer - MusicDevelopments RapidComposer: Music Prototyping and Automated Composition Software
Stork.ai - AI-Based Collaboration for Hybrid Teams. Rich media messaging, advanced video and voice conferencing, auto-transcribing and screen sharing. Serendipitous meetings at the water-cooler with your human and AI teammates.
Cthulhu - VST MIDI-FX plugin for harmonic inspiration
openmeet - Account free video conferencing with a rooms component that lets you use VC within a physical meeting room. The server can also be hosted in your own cloud for extra privacy/security.