Might be better for the app to have "desktops" ? you can swipe between views?

i.e.

Home screen with "links" to the other views

view 1. playlist/multitrack view
- arrange patterns
- create song arrangement

view 2. sequencer
- load samples
- pencil in steps
- press for instrument settings (i.e. attack/hold/decay/echo/pitch/pan etc)
- press & hold for piano roll

view 3. mixer
- compressor
- multiband eq
- couple other plug ins
- 24 channel mixer?

Let's do this, I am so down. Let's hunt for some developers and get this going. Whats the next step?