International Snake Charmer

You are the famous International Snake Charmer, and you need to travel around the world with your trusty MIDI keyboard and charm snakes from Vienna to Java! Be warned, different snakes have different music tastes, and different anger levels...

To play, plug in a MIDI keyboard and use it to press the notes indicated by the scale on the bottom left. Spamming notes or playing the same notes will give you less points than playing fresher ones.