[Hakulyte]

Songs are based on permissions from artists and are obviously not free to distribute so, you're unlikely to ever see a link to download FFR here.

For lag refer to standalone guide: http://www.flashflashrevolution.com/...d.php?t=120256

One question about creating songs - I know that it's illegal to create and upload stepfiles where the permission for the song has not been obtained, but is it possible to create a stepfile locally (and have some version of the game downloaded locally) and be able to use the stepfile for personal use only?

Yes, but you'll have to ask someone who's willing to help you with this. @ Someone who got the offline Engine and know how to add songs etc.

Good luck on developping your playstyle and getting closer over time on how to play this game. Pretty sure lots of people can help you if you need help.