Good but could be better

I like the large keys, and the sound.
There are a few bugs
- hitting a key for the 1st time makes a delay before listening the sound (the sounds should be loaded before the user press a key)
- the sound goes crescendo from right to left sometimes...
- the "multitask" management is bugged, when using the app from the 2nd time, it is unstable sometimes.

PuriKurage about Piano+, v1.5