Playlist shuffle limit ?

If I have a playlist containing 100,000 songs.

On the iPhone, when I press "shuffle", does this mean:

It will create a random order for all 100,000 songs with each song only
played once until all 100,000 have been played ?

or

Does it pick X songs from the playlist and shuffle only them ? If so,
what is the value of X ?

On my iPhone, for a fairly large platlist, I seem to be seeing a lot of
repetitions of a small subset of songs and am wondering how the
shuffling really works.

 

random does not mean each song is played once. it picks them at random,
which might mean you get a repeat. users complained about that so apple
added a way to adjust how random it was, a very bizarre concept. that
'feature' has since been removed, hopefully, because someone realized
what random actually means, but i suspect that wasn't why.

 

I have a playlist set up pointing to my top rated playlist, except
limited to 4 GB selected by random. This is synchronized with my
iPhone. I'm experimenting with it to see if there's a way to
update it so I'm not listening to the same music every time.

--
"In no part of the constitution is more wisdom to be found,
than in the clause which confides the question of war or peace
to the legislature, and not to the executive department."

- James Madison

 

Don't know. It just seems that some songs come up a lot, and some never
do at all.

 

I'm not finding a way to get this list to change. Live updating is
checked, but even rebooting doesn't change the smart playlist
contents.

--
"In no part of the constitution is more wisdom to be found,
than in the clause which confides the question of war or peace
to the legislature, and not to the executive department."

- James Madison