Keybord for various sounds

Select the the instrument (0-127) the duration (0.1-5 seconds) and the beginning note of the sound to play an a two-octave keyboard.
This applet only produces sounds when played as Java applet. You can open it easily from within your local GeoGebra program 1. copy the web address of it ( ) 2. go to your local GeoGebra application 3 hold down the SHIFT key 4. Choose the menu File>Open from GeoGebraTube… The applet then opens locally.