Debayashi is, the output Hayashi (de Bayashi) and entrance music, easy to play in the smartphone, is a fade-in, fade-out can be app.
You can only operations such as volume control slide of a fingertip.
From Ver2.0.1, it can now be continuous performance of a plurality of tracks. It is useful, for example, BGM playing.

If you use in combination with Bluetooth speakers, etc., it is also possible that the artists themselves to stand on the stage to control the entrance song. (Such as alone storyteller Association)

The "Help" menu in the app, so offers easy-to-understand tutorial movies, you do not also be lost in use.