Spotify's Randomizer

[Sanzo2point0]

How exactly does the Android app shuffle music? Something I've noticed while using the radio feature and shuffling my playlists. The radio will only ever pull a handful of songs from the base artist and throw in like three or four songs from another three or four artists. It's pretty much worse than Pandora. Playlist shuffle gets pretty annoying for a different reason entirely. A large playlist on Android (even PS4) will play through at best half the list. I pay for premium because I like the freedom Spotify gives over Pandora but these two issues are really starting to break the deal for me. I shouldn't have to hear the same song three or four times in a single session on a playlist with 20 hours of music.

[Sanzo2point0]

I guess the "help" part of this post is how can I get at least the playlists to play all the way through without making the list shorter, which kinda defeats the purpose.