What is the feature or ability you would like to have?
I have set up numerous smart playlists in my previous music management software (itunes) to automatically make a playlist of my recently downloaded music in a specific genre based on BPM (Example above). In the example, Drum and bass can appear in half-time (80-90 bpm) or full time (170-180bpm.) If I were to set the smart list rules to match ALL of the rules given it would give me zero results as no music can be both bpms and if I set the rules to ANY I would have thousands of songs in the playlist as it would pull any music in any of the bpms. Therefore, having the ability to set 2 filters - an ALL filter to find all the tunes added within the last 2 months AND then apply an ANY filter to filter out the 170-180 and 80-90 bpms, it allows me to have a playlist consisting of purely my newly downloaded dnb in both half time and full time.
How will this feature help you and others?
It will greatly improve the functionality and utility of the smartlists. allowing for more intelligent playlists.
Is this feature available in an existing product? If so, what product?
Yes, this feature is available in iTunes and it is very useful.
Does a workaround currently exist?
No.