Music Notation Apps

http://www.thinkmusictechnology.com/

Very cool app. Let's check it out.

Music compositions using geometric shapes

Music compositions using geometric shapes.

http://www.creativeapplications.net/openframeworks/visua-musio-by-wow-music-compositions-using-geometric-shapes/

SongFactory Songwriting Software

[Research] SongFactory Songwriting Software

The basic idea is some how smilar with our project, but it is a PC version.  Please take a look There's 14 days trial version.

We can make much simpler version. Since we will be creating with the tablet, we can take advantage using touch screen.

"SongFactory is a completely new way to record songs. You can record song demos in minutes, easily try out different song arrangements and even use it to accompany you as you practice."

"As well as providing traditional recording features, SongFactory can generate music to match your chords and tempo. The generated music isn't synthesized - it's created using samples painstakingly recorded by session musicians. You get your own session band working with you to create songs." 

http://notoriousnotes.com/  

Composition Apps For Android

[Research] FYI. Composition Apps For Android

https://play.google.com/store/apps/details?id=com.ayelectronics.MusicComposition&hl=en

Music Composition Apps For The iPad

[Research] FYI. Music Composition Apps For The iPad

http://appadvice.com/appguides/show/music-composition-for-the-ipad