Premiere: Make music sound like it's coming from huge speakers?
I've had good luck by sampling a bit of the video's audio from another point, and splicing that in.  The tone will be dead-on consistent.  You just have to find a point in the song where it basically repeats itself (or close enough).  If you lost verse lyrics, this gets much more problematic fast.  But if you lost chorus, or instrumental bridge, intro, or outro, you could make a patch that manages to not distract.  It the song was well-known, a forced splice will be more evident, but might not seem your doing (you know?).  At the other extreme, if the song is house music, you're golden: no one will know what it was supposed to do for those two seconds.