Using Spotify version 1.0.20.101 running under XP-- verified again December 29, 2016 18:36:44.
Happy New Year!
- Prepare an empty Playlist that you name "Randomized" and drag into that empty Randomized playlist a "Stub track".
- Go to the WebPage
http://textmechanic.com/text-tools/basic-text-tools/sort-text-lines/- Ctrl-A, DeleteKey to clear that screen
- Copy into that nowBlankScreen your whole 9999 track playlist that you want to TrulyShuffle
- Then click the "Random" button-- which is the middle at the top of the browser screen
- Click the RadioButton on "Dos" at the bottom of that screen, in the middle
- Then, just to the left of the "Dos" radioButton, click the Blue "Save As" button-- by default the Randomized playlist will then appear in the Dos file "output.txt" in your browser.
- Ctrl-A, Ctrl-C in the file "output.txt" to copy that whole randomized playlist into the Buffer.
- Click on the "Stub track" in your otherwise empty "Randomized" playlist you made above.
- Under Edit in the top left of your Spotify player, click Paste-- Give the system two minutes to complete the processing of the Paste.
- Voilà -- or
😞 -- which?
- There are bugs in the Spotify Copy, Cut, Delete, ... functions-- some of the replacements for the above detailed steps work in the buggy Spotify players and some don't.
======
I use only the Spotify player 0.9.15.27 running under Vista to do all of my shuffle and maintenance of my 75,314 track "Your Music"-- Much simpler and unified under a sensible "Folder" that I can sort immediately across all 75K tracks by Artist / Album by one click.
Then I cut from my randomized playlist to a 9000 track SubPlaylist-- one 9000 track SubPlaylist for each device-- Thus no repeats even among mobile devices-- ever.
======