Add mood parameter to search for artists and tracks and filters by mood

So far, Pavel @Maximizer, 

Here is the list of what you can specify : 

• artist
• album
• track
• lyrics
• label
• dur_min (min duration)
• dur_max (max duration)
• bpm_min (min bpm)
• bpm_max (max bpm)
• track_id

For example, test the following queries  : 

• artist:"aloe blacc" track:"i need a dollar"
• label:"because music"
• bpm_min:"120" dur_min:"300"
• lyrics:"Never gonna let you down"

Thanks Rudy

I also have a question about the Deezer algorithm, what algorithms does the “play mix based on a track” function use? How does the Deezer determine that the tracks are similar in genre, energy? Does the Deezer use some third-party services or does he have his own algorithm, like have Spotify?

Thanks for the interesting question @Maximizer 

Our devs cconfirmed it's based on the artist for the moment, but our teams are currently exploring different variations of this based on a track itself, following trends. Your feedback came at the right time