Sale has ended but you can still get this app.
Download Music Dancer MX Now

Official Description

Music Dancer is an very easy music maker tool, just fill the 16 rows gird then play.
And you baby may have a try too.

you can prepare grids with trackbar for each scene or dynamic generate grid with preview.
16 grid piano mid voices.
10 secends timeline.
Recording & save sounds to a wave format audio file.

Do you want more features such as:
save project ?
more secends of timeline ?

please let me known, tks.