No clue how to use this – Drum And Bass Machine Review

Maybe I'm an idiot, but I have no idea what to do with this app! I paid for the upgrade & i don't see any instructions on how to make beats/construct drum loops etc. The only editing features I see are when you hold down a pad & the option to change volume or pitch are editable. Need help!!!
Review by R.wayneanderson on Drum And Bass Machine.