90mins long, type 1 cassette in pale blue tranlucent plastic casing, manufactured by Maxell. Should play in any cassette player but is probably more likely to dirty your heads than cleanse.
Left sellotaped to railings outside what turns out to be the School of Cosmic Physics, 5 Merrion Square North, at approximately 12.15pm on Wednesday 20th of August, 2008.
