via these listings
You can find demos in previous posts here.

"Vintage Bandmaster Powerhouse Drum Machine Tape #12 from the 1970s. Working condition. It includes Latin Hustle and Philly Beat variations. It will be packed with care. Two available."
"Vintage Bandmaster Powerhouse Drum Machine Tape #10 from the 1970s. Working condition. It includes four disco beat variations. It will be packed with care."
"Vintage Bandmaster Powerhouse Drum Machine Tape #11 from the 1970s. Working condition. This one includes 4 Disco rock variations. It will be packed with care."
"Vintage Bandmaster Powerhouse Deum Machine Tape #7 from the 1970s. Working condition. This one includes Motown Slowbeats and Latin Slowbeats. Probably the most useful and coolest sounding tape they did. It will be packed with care."
"Vintage Bandmaster Powerhouse Drum Machine Tape #6 from the 1970s. Working condition. It includes March, Polka, 6/8 Rhythm, and Jig. It will be packed with care."
"Vintage Bandmaster Powerhouse Drum Machine Tape #5 from the 1970s in working condition. It includes Rhumba, Cha-Cha, Bossa Novs, and Beguine. It will be packed With care."
"Vintage Bandmaster Powerhouse Drum Machine Tape #14 from the 1970s. Working condition. It includes Tennessee Country Waltz, Nashville Country Waltz, Country 12/8, and Nashville 12/8. It will be packed with care."