when they put out promo clips we all listened to there was one called "Lost Signal" I purchased the score on itunes but it wasn't on there? Think it will be on the CD? maybe the track got remaned? I can't find the promo clips anymore but if someone knows where they are I can see if it is the same track as another one.
Under the 'store' menu at the top on itunes, find 'check for available downloads'. If you haven't downloaded it, it should be there. If not, try checking the download history, or searching all your music by the title, album, then artist. It may have gotten a bad tag (don't know how though). Also check the phyiscal location of the files on your HDD. If there's still nothing, contact apple. It should be on your records.
you're right about the wrong tag thing my husband is the computer expert and for some reason that one track labeled itself 03-Lost Signal so it was elsewhere in the library thank you!