To play the xylophone you can press the keys and to change the instrument use the slider and to switch from bass to treble clef press up for treble clef and the down arrow for bass.
List of instruments (in order 1-21) 1 Piano 2 Electric Piano 3 Organ 4 Guitar 5 Electric Guitar 6 Bass 7 Pizzicato 8 Cello 9 Trombone 10 Clarinet 11 Saxophone 12 Flute 13 Wooden Flute 14 Bassoon 15 Choir 16 Vibraphone 17 Music Box 18 Steel Drum 19 Marimba 20 Synth Lead 21 Synth Pad
