6 Octaves Piano app for iPhone and iPad

About this app:
- This piano app has 7 octaves range (C1-C8),
And can display 6 octaves keyboard (73 keys) at once.
You can play wide key range without keyborad switching operation.
- You can split the keyboard to left and right.
Each keyboard has one octave and three lines.
Playing will be easier because the left and right hands not cross.
- You can also switch the keyboard to three-lines and two-lines.
In the two-lines display, fingering and code holding will be easier.
- You can change the octave of the keyboard within the range C1-C8.
- The settings are stored and set upon restart of app.

Please note:
- As other apps,
Your iPad might do the multitasking gestures or zoom the screen
when you touch the screen with multi fingers.
Please make following settings to prevent this.
1.Open the "Settings app" from Home screen.
2.Turn off "General" -> "Multitasking Gestures".
3.Turn off "General" -> "Accessibility" -> "Zoom".