I’ve noticed that a lot of the API searches produce irrelevant matches, especially when it comes to looking for a self-titled album.
Here’s an example:
http://api.deezer.com/search/album?q=artist:“Kool and the Gang” album:“Kool and the Gang” should return http://deezer.com/us/album/8449361, but for some reason it returns the greatest hits album, http://deezer.com/us/album/70763392.
If there was a date field (e.g. q=date:”1969”), this would be easily overcome.