For clarity - what am I missing from this list of requirements
[ ] Audio data distributed to the user in a Replayable / seekable widget with visible timer
[ ] Visual representation of the audio data itself (FFT?)
[ ] Capacity to mark the visual representation
[ ] Sync line in the visual display matching the audio timer
[ ] Show time mark on hover on all marks on the audio visualization
[ ] Plugin location for javascript powered widgets for defining the meaning of marks and/or additional annotation display/edits specific to a given task. Could include disabling markers ie. genre classification.
For clarity - what am I missing from this list of requirements