Nearly all recorded - possibly a few blank - many commercial recordings and a lot of mix tapes and home recorded music. A mix of classical and 1970s and 1980s stuff, play them, wipe them and use them for recording, or make sculptures with them.
Probably a couple of hundred in all, no guarantees about their playability but they have been stored indoors in dry conditions and out of sunlight.
Big Stack of Cassette Tapes (Pokesdown BH6)
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