It is, in fact, Google "Play Music" that I enter to see the tracks I have purchased. These tracks must be on the Note 3 (not played from the cloud somewhere) because they will play even if I put the Note3 into flight mode. However, I cannot find them anywhere even though I have thoroughly searched the Note3 file structure. I thought that Android/data/com.google.android.music/files looked promising but this folder is empty. I also USB connected the Note3 to my Windows 7 laptop and tried the Windows Media Player sync function. This found the MP3 file in the Samsung music folder - but not any of the Google Play Music tracks. It would be good to be able to play the music on my PC also. I expect this is a policy on Googles part to prevent users from using other players to play the music and possibly also an anti-piracy ploy. I am new to this business of using computers and phones to play music - I have never had an ipod or anything like that and I do not have any existing MP3 files. How do people usually get their music? I note that Amazon allows you to purchase MP3 files and the article I read says this is controversial because these files to not have "DRM protection".