C#

foreach(IITFileOrCDTrack iTrack in iTracks)
{
  // Find the filename
  string srcPath = iTrack.Location;

  // Parse the full filename and remove anything
  // before the artist folder.
  // eg. "C:\iTunes\Queen\The Works\01 Radio GaGa.mp3" becomes
  // "Queen\The Works\01 Radio GaGa.mp3"
  int a = srcPath.LastIndexOf('\\');
  int b = srcPath.LastIndexOf('\\', a - 1);
  int start = srcPath.LastIndexOf('\\', b - 1);

  // Strip the beginning path from the filename.
  string destPath = srcPath.Remove(0, start);

  // Insert the destination folder.
  destPath = destPath.Insert(0, tmpPath);

  // Remove the filename and check if the destination folder exists.
  start = destPath.LastIndexOf('\\');
  string tmpDest = destPath.Substring(0, start);
  string tmpSongName = destPath.Substring(start + 1);