[mafrasi2]

Don't worry about code quality, it's perfectly readable. Although I only have very limited javascript knowledge, I would love to contribute if you make this open source. It's really a great project!

After a few seconds, it still freezes for me, so that's one thing I could try to fix :)

[adrianosbr]

I use Concertmaster all the time on my Mac, with no problems at all. Which OS are you running?

[mafrasi2]

I'm running Arch Linux with spotify version 1.0.67.582.g19436fa3. It gets stuck at this screen as soon as I start playing something:

https://i.imgur.com/WJZKiUA.png

After that, the GUI elements just don't respond at all. There is no CPU usage, so it's probably not an infinite loop.

I enabled logging, but don't see anything significant.