Rhythmbox play order?

oops decryption=description

Here are the definitions of all the options:
linear-loop - ordered playlist and loops back to the beginning
linear - ordered playlist, but stops when finished
random-by-age-and-rating - random playlist, preferring songs that haven't
random-by-age - random playlist, preferring songs that haven't been played in a while
random-by-rating - random playlist, preferring higher rated songs and songs that haven't been played in a while
random-equal-weights - random-ordered playlist where all songs are played in equal amounts
shuffle - completely random

I researched it, but I am not 100% positive. If this helps, however, please mark this ticket as "Answered."

What Im really looking for is a probabilistic breakdown of each setting.
Example:
If I have random-by-age-and-rating whats the probability that a song with 3 stars thats 3 months old vs 3 stars thats new getting played?
And what is the probability of 1 star vs 5 stars?

And most importantly how do no stars work? Is having no stars the same as 3 stars (average), or 1 star?

I would like to have the lastfm feature that is in Listen

It plays random tunes from artists similars to the last one.
It gathering artists similiarities from lastfm but play only tunes you already have on your hard drive.

At first I though that it was what was doing the create radio from lastfm option in rhythmbox, but I soon realised I didn't had the played tunes ^^

> And most importantly how do no stars work? Is having no stars the same as 3 stars (average), or 1 star?

Based on this code snippet from rb-play-order-random-by-rating.c:
        rating = rhythmdb_entry_get_double (entry, RHYTHMDB_PROP_RATING);
        if (rating < 0.01)
                rating = 2.5;

I looks like no rating is treated as 2.5