Quote:
Originally posted by havefaithrestart
When does a song go recurrent? Any specific time or when it's been out too long and it's already free falling?
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Recurrent rules for Mediabase:
MediaBase
... and for Billboard/Nielsen BDS
BDS
RECURRENT RULES
Descending songs are removed from the Billboard Hot 100 and Hot 100 Airplay simultaneously after 20 weeks on the Billboard Hot 100 and if ranking below No. 50. Songs are removed from Hot R&B/Hip-Hop Songs, Hot Country Songs, Hot Rock Songs, Hot Latin Songs and Dance/Electronic Songs after 20 weeks if ranking below No. 25. Songs are removed from R&B Songs and Rap Songs, respectively, concurrent with their removal from Hot R&B/Hip-Hop Songs.
Descending songs are removed from Country Airplay after 20 weeks if ranking below No. 10 in detections or audience, provided that they are not still gaining enough audience points to bullet or if they rank below No. 10 and post a third consecutive week of audience decline, regardless of total chart weeks.
Descending songs are removed from Rock Airplay, Mainstream Rock, Latin Airplay and Latin Airplay charts after 20 weeks if ranking below No. 20.
Descending songs are removed from Adult Contemporary, Adult Top 40 and Adult R&B after 20 weeks if ranking below No. 15, after 26 weeks if ranking below No. 10, or after 52 weeks if ranking below No. 5.
Descending songs are removed from the Mainstream Top 40, Alternative, Triple A, Active Rock, Heritage Rock, Mainstream R&B/Hip-Hop, Rhythmic, Christian Songs, Christian AC Songs, Gospel Songs, Dance Airplay and Smooth Jazz Songs charts after 20 weeks and if ranking below No. 15.
http://www.billboard.com/biz/billboard-charts-legend
How can i know how much it has raised though? 
Hopefully this will smash hard 