music dec tapes? (paper)

Tue Jan 1 15:17:50 CST 2019

anyone seen these music tapes before i grabed  this trays for the oddnes of
the content of these tapes? also apears to have the software to play them?

https://www.ebay.ca/itm/Lot-of-15-digital-decus-Paper-Tapes-w-Case/273628629483?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

https://www.ebay.ca/itm/Lot-of-8-digital-decus-Paper-Tapes-w-Case/273628539210?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

would this be some weird synthy type thing?
control points for the sound boaerd used for automation on some fancy desk?
or somthing els?