..that featured this.
The Warp II
[img]http://www.drumsetmag.com/wp-content/uploads/2012/09/warp-II.png[/img]
Had a predecessor
[img]http://www.drumsetmag.com/wp-content/uploads/2012/09/kidneydrumIR.jpg[/img]
sometimes referred to the "karlheinz stockhausen drum"
I remembered the Ad but found nothing on the internet until a pinterest picture
led to
http://www.drumsetmag.com/category/tools/vintage/page/4/
translate from Italian) if you have to.
[ame]https://www.pinterest.com/pin/542050505126337878/[/ame]
No mo' info on the Warp II unless you have some;
or Info, on the latter (looks European) pictured "drum"