I really hate to say I don't reccomend this game, but as some other people have said, it's unfortunately the inferior version. I have played the EGA version all the way through and I think it's a pretty good game. I wouldn't rank it high among the LucasArts classics, but definitely something worth checking out. It's got a good plot and has an interesting take on the point and click genre; the only item here is a staff that can play music to perform a draft. You learn more and more of them as you play through the game, and use each draft to help get you through a puzzle. It's a fairly short game, but a good one.
Unfortunately, LucasArts decided to include the CD version of this game instead of the EGA or FM-Towns version. While it has updated 256-color VGA graphics and voice acting, all of the dialogue and music had to be stored as CD audio. The voice acting is sloppily done at times and the music doesn't play very often, killing a lot of immersion. They also cut down the dialogue considerably, leading to some rather confusing moments in the plot. It's really a shame; I'd love to reccomend this game, but I just can't. There is a site that offers the FM-Towns version though, if you have bought this version. Since that's generally considered the best version (it has all the positives of both PC editions and none of the negatives of either), I'd say go on ahead and buy it and follow their method to obtain it.