ABC SingSong is a series created by Warren Brown and Adam Goddard, the creators of Big Block SingSong. The videos were deleted on the TVO Kids YouTube Channel because it was cancelled.
You can find episodes on Sky Go. So yeah.
UPDATE: ALL THE EPISODES PUBLICLY AVAILABLE ON TVOKIDS YOUTUBE AND WEBSITE CAN BE FOUND AT https://player.viloud.tv/embed/channel/68390fbadd10c5eb2d6886d5fc8d7055.