Coby showed up with a wide variety of music, including rock, on his laptop and an external drive. If someone wanted to give Tony music, Coby as one of the musicians around the inn, might be a good person for them to ask. I'm sure Tony has more advanced ways to store music than on a blank cassette, for anything they wanted to copy.
(Not wanting to speak for other players, but for additional possibilities: Caroline received a laptop of karaoke music, and Curnen inherited the iPod Scanlan picked up and filled with music in Europe.)
Re: Tony Stark
(Not wanting to speak for other players, but for additional possibilities: Caroline received a laptop of karaoke music, and Curnen inherited the iPod Scanlan picked up and filled with music in Europe.)