When I add an album I use Replay Gain from Foobar 2000 to help the music be at the same volume level since I like to random mix my music. If I do this though, am I only volume leveling those songs compared to each other (meaning the new songs are not volume leveled against my entire music libray)? Do I have to replay gain my entire music library every time I add an album in order for everything to be leveled or do I just replay gain the new folder on it's own? I hope my question makes sense.