You have already seen them on YouTube interactive videos "> To understand well and have fun with these wonderful experimental video clips you have to try.
For example, we have the interactive piano that can be played from a YouTube video .
The trick used by those who made the video is to play the piano keys, one by one, on a regular basis, from start to finish.
By clicking with the mouse over the video, on the keys, all you do is move the timeline to the point where that particular note is played on the keyboard.
Before starting to play you must let the video load in its entirety and, after the bar has turned all red, click on the keys and see that, each time, the dot of the Play line moves and you listen to the sound related to that button.
There is not only the YouTube piano, in another video it is also possible to play the electric guitar .
In this case, the video must be started directly from the YouTube site, in normal (non-HD) mode, and everything must be loaded before seeing it.
Each guitar chord, indicated by superimposed squares, is played for 7 seconds by a guitarist.
To play you must not click on the video but on the progress bar of the reproduction .
Interactive Piano instead allows you to play, with the same mechanism, a classical guitar, using the keyboard of a piano.
You will see the keyboard on the left and the guitarist on the right; depending on the key pressed, you will see the guitarist play a note on his guitar.
In the same way, you can also play the shaker, the cello and the organ .
In addition to playing, you can then discover the many games on YouTube with interactive multiple choice videos.
