demo tape; demonstration tape
A recording used to showcase a musician's or band's work, typically for promotional purposes or to secure a recording contract.
彼はレコード会社にデモテープを送った。
He sent a demo tape to the record company.
そのバンドは
The band recorded a demo tape and tried to get bookings for live shows.
Variant spelling with an interpunct; less common but seen in some contexts.
Loanword from English 'demo tape', a clipping of 'demonstration tape'.