1. Sound components cannot be created with MP3 files.
1. Frequencies cannot be combined with wav files when using sounddevice audio library (psychopy.exceptions.SoundFormatError: Tried to create audio stream 48000_2_128 but 44100_2_128 already exists and win32 doesn't support multiple portaudio streams)
## PsychoJS
1. Silenced Notes/Frequencies are still audible.
1. No loops gives ReferenceError: currentLoop is not defined when the spacebar is pressed.