These are SoundCloud clips of this patch either just running in ambient mode, or looping the drop section lots of times.
Ambient section
Drops

As with many things in algorithmic composition, implementations of a particular idea or way of doing something are very specific to their use-case. Therefore look at this patch more as a practical reference point for various techniques of generating melodies, harmonies and rhythms for popular music genres.
Pause the auto-play of the arrangement in [pd ambient-structure], which makes it easier to inspect individual instruments without the track progressing automatically.

There are comments all over the patch where I feel the objects need further explaining, but there are also some longer-form blog-posts covering various methods and techniques here:

• Composing Drops To Ship
• Diving into the sPiDers web
• Drop timings and endless techno
• Music Update - Ambient