Delete old tracks with cron job

[freenerd]

Reason is the correct number of tracks per city. If we don't delete, cities grow and grow and every city gets the biggest bubble. We also do not need the old tracks anymore, because they will not appear on the map or genre filter anyway. Limit could be 3 months.

[ericw]

you could also do the city size relative, so you'd keep track of the biggest city and we could size all other bubbles relative to that one (so say london has 500 tracks, LA has 300, then LA would be 60% size of london, etc..)