Bored of 4/6 digit passcode of an iDevice? Well here is a new tweak in cydia. Piano Passcode
is a beautiful looking tweak which allows you to unlock your device playing a
beautiful sound. Forget the digital passcode & start unlocking your device
with a music. This tweak is available for $ 0.99 in BigBoss Repo and is compatible for iOS 6 or higher.
You can configure this tweak from the Setting panel. 
If your device has not yet jailbroken, then follow this step by step guide to How to jailbreak iOS 9.0.2 untethered by Pangu.