Potential typo or unused code

[lulebe]

this.lastPortCount = this.portCount in your midi-adapter.js on line 32 assigns a function to an integer variable. It's overwritten in the only case it's being used after that I think, so you could probably remove it, or change it to calling the function instead of assigning it.

[Simsso]

Thanks you for pointing that out. That's a mistake I've made. I'll fix it.

The MIDI relay part is not too important after all because (as I learnt after publishing the video) there is a MIDI API available in Chrome. Version 2 of this project is going to make use of it.