humit - A social networking app for music sharing and discovery.
KeepNotes for Google Keep - The easiest and most convenient way to access Google Keep notes on your Mac
Songlink - Share music with anyone.
GitJournal - Manage your Notes from any Git Repo.
Son.gg in Slack - Share music with your team in Slack
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.