The Joy of Old Boxes

At work, I have just found a box of cassettes: old Helen and the Horns songs I'd forgotten about in demo form, my ex-husband's sister's band Igor's Night Off, multiple portastudio demos of songs I wrote for a children's musical 20 years ago (anyone got a portastudio?).
What I'm wondering is whether one of the blank ones has the recording of Debbie Harry rapping an Edith Sitwell poem, part of a (possibly aborted?) brilliant project by Alannah Curry to get rappers to do Sitwell's poetry over Alannah's backing tracks. I did one but I'm more of a crapper than a rapper unforchly: I just don't have it in me.