Details are unknown. There are 30 tapes, but it's not confirmed if all of them have audio recorded on them. It seems they were listened to on an AKAI deck, but the deck isn't working, so it's unclear. Judging from some of the titles, they seem to be jazz. If you're interested in listening, please feel free to inquire. A diverse set of audio tapes, including brands like maxell and BASF. - Brand: maxell - Model: 35-90 - Brand: BASF - Model: EMPTY REEL - Brand: maxell - Model: 35-90 - Brand: BASF - Model: Def Stand (likely a typo, possibly "Defective Stand" or a similar term) - Brand: Scotch - Model: SLH-550 Thank you for looking.