The description is enough to understand the goal for this achievement and I think nobody needs a guide for it. Get 3 stars on all disc songs of the game in standard mode. Meaning no battle, alternative or mash up or similar. That's all!
But it looks like this achievement is somehow bugged and for me tracking using the Xbox One Dashboard / Achievement App or Smartglass didn't work. Both stated that I achieved 0% of the songs with a rating of 3 or more stars. Even more disturbing for me I achieved at least 3 stars on every single songs on the game, even the download songs (which should not be included for this achievement), but I didn't got the achievement. Funny overall, True Achievement DOES track the number of cleared songs while Microsoft couldn't!? TA stated that around 12 songs are missing ...
So what? What is wrong? To be honest, it is not quite clear to me. My suggestion is, that the game does not track any song cleared with 3 or more stars when Sweat Mode is active, e.g. the free sweat mode. The in game tracking pins your result to the song icon but it does not count for the achievement. Maybe someone is able to confirm this!
TA increased my progress over the time while I replayed some songs with friends and after I replayed every song I thought I played in sweat mode I somehow got the achievement today.
So my only advice is to use TA tracking of the Achievement instead of the Microsoft tracking and just replay every song you might have played in any other mode then standard mode!
Ubisoft Support just confirmed that if another mode like Sweat is used instead of just the standard mode to play the songs the result is not tracked by the achievement. But it does not help with the bugged Achievement tracking on the Xbox One Dashboard.