I do apologise in advance if this has already been suggested or if there is already a feature that is similar in amarok ( I am version 1.3)

What it be possible for the user to create a playlist based on the following algorithm.

% of playlist with tracks that have score between 100 and 90
% of playlist with tracks that have score between 89 and 80
% of playlist with tracks that have score between 79and 70
% of playlist with tracks that have score between 69 and 60
% of playlist with tracks that have score between 59 and 50
% of playlist with tracks that have score between 49 and 40
% of playlist with tracks that have score between 39 and 30
% of playlist with tracks that have score between 29 and 20
% of playlist with tracks that have score between 19 and 10
% of playlist with tracks that have score between 9 and 0
Number of tracks in playlist:
Containing artists:

Obviously the percentage in each line is entered by user and more than one column can be set to 0. As well number of tracks is entered by user and artists can be more than 1.

I am quite impressed with Dynamic mode but I think this option will give more control over what is played.