I totally understand what you mean about melody, however you have to take into consideration the limitations of this application and what you have to work with.  Although they packed a lot into this thing you're really only working with like (one measure patterns).  Also this isn't a (lead) type composition either.  When writing this I had the idea of someone "flowing" over the beat.  I could go all out and make a melody for it though.  Maybe I'll tackle that next  

 
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GEAR:  Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller).  SOFTWARE:  Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.