Now, this page will introduce you how to improvise your own music using MIDI file(s).

First, go search MIDI file(s) you would like to choose and improvise and download it.

Second, after you download the file(s), drag the file(s) into GarageBand.

Third, in order to improvise, go to ‘Window’ and click ‘Musical Typing’.

Fourth, press the ‘+’ button and add the new type of music you would like to improvise.

Last, press record button and start to improvise!

Now, you also get how to improvise your own music through MIDI file(s).

Here is my sample.