Harmony used to be open-source. Why did it change?

You can read my answer here.

I use double factor authentification with my Google account, how can I login to Harmony?

You can create a specific app password or you can (although insecure and at your own risk) enable the insecure app access in your Google account settings.

Why are some tracks from Spotify and Deezer not the same as the original songs?

Spotify and Deezer only provide APIs to fetch metadatas but not the actual musics. To play these tracks, Harmony tries to find the closest match on YouTube, but may be wrong sometimes.

What happens to my Google and Hype Machine credentials when I login on Harmony?

There is no official API for Google Play Music so the only way to login is by entering your credentials. The Hype Machine plugin doesn't yet support OAuth login. However, both your Google and Hype Machine credentials aren't stored anywhere and are only used to obtain a token on the first login.

Why is Harmony detected as a Virus?

There seems to be some issues with the asar packaging Harmony is using. See this issue.

Who is behind Harmony?

I'm Vincent, 17yo french, working on Harmony since 2016 and some other stuff while studying. You can follow me on Twitter @vincelwt :)

What is it build on?

Harmony is built with Electron and vanilla JS. It allows me to code faster than using traditional languages.

Does Harmony auto-update?

No. It probably never will (I find auto updates really annoying). It will alert you when a new version is available though.

Can I write my own Harmony plugins?

Yes. Well, actually pretty soon. I'm still cleaning things up but will open-source the current plugins and write a documentation.