0.4.0b6
- fixed small bugs
- added number input dialog
It is available in Mixer and SongSettings.
To access it in Mixer, click volume number.
To access it in SongSettings, click tempo number.

0.4.0b5
- fixed the sequencer related bug
(when 'play from first' button is clicked continuously, there was the case that the sequencer behaved strangely)

0.4.0b4
- fixed some bugs
- devices that its Android version is bellow 3.x are no longer supported