Piano Passcode is a new tweak that you can find on Cydia from the BigBoss source at $ 0.99. This tweak will allow you to unlock your phone by playing a few piano notes. After installing the tweak, go to the tab in Settings to configure.
First, select the tweak. In the first option, "change passcode piano" you can set your password with the 7 key on the piano. These are numbered and you simply set your combination, such as "2257641". If you define a password with the native option as "2431" it will press 2,4,3 and one piano key. To access the classic unlock code, just press the little red cross in the top right. Attention, it absolutely must make a respring.