Notes occasionally get stuck on

[alex-parisi]

Occasionally, while playing with a MIDI input, a note will get stuck on using Baby's First Synth. This could be due to a few things:

• The MidiInput object is missing the MIDI Note Off event - less likely, as all MIDI events are handled via thread-safe callback and not polling.
• The VoiceSelector object isn't assigning the MIDI Note Off event to the correct voice
• The Envelope object isn't handling the MIDI Note Off event correctly - also less likely, as the majority of Note Off events do correctly change the Envelope state.

[alex-parisi]

Changing the VoiceSelector to sequentially selecting voices instead of finding an "open" voice seems to help - not sure if this is still happening or not.

[alex-parisi]

Most likely fixed with #16

[alex-parisi]

Unfortunately still happens :(