Do remixes - you can learn your production chops by taking part in remix competitions . The key is to understand the structure, from mixing with textures (old electronic dance tracks) and the buildup and drop down kind (edm).
For melody or chord arrangement, imagine playing them on a keyboard - idea is to keep to all chords within 1 octave for the time being, while bass riffs can be kept simple. Then variate them by placing them in a 16 beat, 4 bar loop.
Hopefully this can get you started.
RE: Ulogsound #2: Zidane Bibal - Beginning (Electronic Music)