The 1.1 version of QueueSongAppX for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is an intellectual property of Lynn Pye. The application belongs to Audio & Video Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
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.