Click the violin strings and boxes with notes in them and they will make that note sound it may sound a little after you press them.And you can play two notes at the same time. I might of made a mistake with the notes tell me in the chat if i did. (You can also use this to tune your violin.) Any twosetters? And you can do the C major scale with the simulator.Sorry about the drawings (scribbly). Click A440 to tune strings and Bb to tune winds.