QueueSongAppX is an AppleScript application to be used with iTunes. It allows you to queue a song to play immediately following the currently playing song.
Some have suggested just creating a playlist and setting up the order as you like. Others recommend using the new Party Shuffle feature. These are good and well, but I already have several playlists that I like to listen to straight through, usually. Every now and then, though, I like to play things a little out of order and so want to keep the rest of the playlist flow just as I have it already, but without the hassle of arranging a whole new playlist or altering the order of more...
- Mac OS X 10.2 or later, iTunes.