Anyone had this problem? With iPod Classic?

Question

Don't normally do this, but I'm posting this in two places, iPod Classic and GarageBand because I think both of those audiences might have encountered this.
1) Let's say I have +Song A+, recorded in GarageBand, with a tenor sax already in iTunes;
2) I decide to add a flute. Do so in GarageBand;
3) I keep the title of the song the same: +Song A+;
4) I go to iTunes and delete +Song A+ (which just has the tenor sax);
5) Back to GarageBand, and send +Song A+, with flute added, to iTunes;
6) It's there. Plays +Song A+ with both sax and flute;
7) Hook up the iPod Classic, it syncs but ...
8) It plays version one of +Song A+, just the tenor sax, no flute;
9) Why? This is the way I've always done it, with no problems.
10) The only way I could get the new version of +Song A+ onto the iPod was to rename it: +Song B+. Then it was there. But that shouldn't have been necessary, at least from my past experience
Is something not right with my iPod Classic?

Answer 1

nemateoz wrote:
Why?
i'm not sure what criteria iTunes uses to detect changes, but the name would be one, perhaps creation date (and other things?). only "changed" songs are synced (otherwise the entire library would be x-ferred every time you sync)
10) The only way I could get the new version of +Song A+ onto the iPod was to rename it: +Song B+.
i would try adding 1 step: delete the song from iTunes, sync, then add the new version to iTunes and sync.