videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including DXi FM synthesizer for iPhone Demo Movie part 2 of 3 - Voice Edit -, DXi FM synthesizer version 3.1.0 on iPad, DXi FM synthesizer ver 2.2.0 playing with External MIDI Controller via Camera Connection Kit